Merge topic 'vs15-detect-from-installer'

3a97a371 VS: Port Visual Studio Setup third-party header to older VS versions
c93e85d8 VS: Use Visual Studio Installer to locate VS 2017
18c8278b VS: Add helper class to interact with Visual Studio Installer
d47bda00 VS: Fix VS 2017 Windows Store toolset selection
efdfc26e VS: Drop check for VS 15 Express Edition
ad5b702c VS: Port Visual Studio Setup third-party header to MinGW
def7395f VS: Add Visual Studio Setup third-party header

9 files changed, 1604 insertions, 44 deletions

diff --git a/Source/CMakeLists.txt b/Source/CMakeLists.txt
index d15fdbe..57b7b25 100644
--- a/Source/CMakeLists.txt
+++ b/Source/CMakeLists.txt
@@ -710,6 +710,8 @@ if (WIN32)
       cmGhsMultiTargetGenerator.h
       cmGhsMultiGpj.cxx
       cmGhsMultiGpj.h
+      cmVSSetupHelper.cxx
+      cmVSSetupHelper.h
       )
 
     # Add a manifest file to executables on Windows to allow for
diff --git a/Source/cmGlobalVisualStudio10Generator.cxx b/Source/cmGlobalVisualStudio10Generator.cxx
index dde6e82..e27615a 100644
--- a/Source/cmGlobalVisualStudio10Generator.cxx
+++ b/Source/cmGlobalVisualStudio10Generator.cxx
@@ -425,20 +425,6 @@ std::string cmGlobalVisualStudio10Generator::FindMSBuildCommand()
     }
   }
 
-  // Search where VS15Preview places it.
-  mskey = "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\SxS\\VS7;";
-  mskey += this->GetIDEVersion();
-  if (cmSystemTools::ReadRegistryValue(mskey.c_str(), msbuild,
-                                       cmSystemTools::KeyWOW64_32)) {
-    cmSystemTools::ConvertToUnixSlashes(msbuild);
-    msbuild += "/MSBuild/";
-    msbuild += this->GetIDEVersion();
-    msbuild += "/Bin/MSBuild.exe";
-    if (cmSystemTools::FileExists(msbuild, true)) {
-      return msbuild;
-    }
-  }
-
   msbuild = "MSBuild.exe";
   return msbuild;
 }
diff --git a/Source/cmGlobalVisualStudio15Generator.cxx b/Source/cmGlobalVisualStudio15Generator.cxx
index 20d30bc..d11ee7c 100644
--- a/Source/cmGlobalVisualStudio15Generator.cxx
+++ b/Source/cmGlobalVisualStudio15Generator.cxx
@@ -8,6 +8,7 @@
 #include "cmMakefile.h"
 #include "cmVS141CLFlagTable.h"
 #include "cmVS141CSharpFlagTable.h"
+#include "cmVSSetupHelper.h"
 
 static const char vs15generatorName[] = "Visual Studio 15 2017";
 
@@ -80,11 +81,7 @@ cmGlobalVisualStudio15Generator::cmGlobalVisualStudio15Generator(
   cmake* cm, const std::string& name, const std::string& platformName)
   : cmGlobalVisualStudio14Generator(cm, name, platformName)
 {
-  std::string vc15Express;
-  this->ExpressEdition = cmSystemTools::ReadRegistryValue(
-    "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VCExpress\\15.0\\Setup\\VC;"
-    "ProductDir",
-    vc15Express, cmSystemTools::KeyWOW64_32);
+  this->ExpressEdition = false;
   this->DefaultPlatformToolset = "v141";
   this->DefaultClFlagTable = cmVS141CLFlagTable;
   this->DefaultCSharpFlagTable = cmVS141CSharpFlagTable;
@@ -118,7 +115,7 @@ bool cmGlobalVisualStudio15Generator::SelectWindowsStoreToolset(
   if (cmHasLiteralPrefix(this->SystemVersion, "10.0")) {
     if (this->IsWindowsStoreToolsetInstalled() &&
         this->IsWindowsDesktopToolsetInstalled()) {
-      toolset = "v140"; // VS 15 uses v140 toolset
+      toolset = "v141"; // VS 15 uses v141 toolset
       return true;
     } else {
       return false;
@@ -130,21 +127,44 @@ bool cmGlobalVisualStudio15Generator::SelectWindowsStoreToolset(
 
 bool cmGlobalVisualStudio15Generator::IsWindowsDesktopToolsetInstalled() const
 {
-  const char desktop10Key[] = "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\"
-                              "VisualStudio\\15.0\\VC\\Runtimes";
-
-  std::vector<std::string> vc15;
-  return cmSystemTools::GetRegistrySubKeys(desktop10Key, vc15,
-                                           cmSystemTools::KeyWOW64_32);
+  return vsSetupAPIHelper.IsVS2017Installed();
 }
 
 bool cmGlobalVisualStudio15Generator::IsWindowsStoreToolsetInstalled() const
 {
-  const char universal10Key[] =
-    "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\"
-    "VisualStudio\\15.0\\Setup\\Build Tools for Windows 10;SrcPath";
+  return vsSetupAPIHelper.IsWin10SDKInstalled();
+}
+
+std::string cmGlobalVisualStudio15Generator::FindMSBuildCommand()
+{
+  std::string msbuild;
+
+  // Ask Visual Studio Installer tool.
+  std::string vs;
+  if (vsSetupAPIHelper.GetVSInstanceInfo(vs)) {
+    msbuild = vs + "/MSBuild/15.0/Bin/MSBuild.exe";
+    if (cmSystemTools::FileExists(msbuild)) {
+      return msbuild;
+    }
+  }
+
+  msbuild = "MSBuild.exe";
+  return msbuild;
+}
+
+std::string cmGlobalVisualStudio15Generator::FindDevEnvCommand()
+{
+  std::string devenv;
+
+  // Ask Visual Studio Installer tool.
+  std::string vs;
+  if (vsSetupAPIHelper.GetVSInstanceInfo(vs)) {
+    devenv = vs + "/Common7/IDE/devenv.com";
+    if (cmSystemTools::FileExists(devenv)) {
+      return devenv;
+    }
+  }
 
-  std::string win10SDK;
-  return cmSystemTools::ReadRegistryValue(universal10Key, win10SDK,
-                                          cmSystemTools::KeyWOW64_32);
+  devenv = "devenv.com";
+  return devenv;
 }
diff --git a/Source/cmGlobalVisualStudio15Generator.h b/Source/cmGlobalVisualStudio15Generator.h
index 59eb11a..781b41e 100644
--- a/Source/cmGlobalVisualStudio15Generator.h
+++ b/Source/cmGlobalVisualStudio15Generator.h
@@ -9,6 +9,7 @@
 #include <string>
 
 #include "cmGlobalVisualStudio14Generator.h"
+#include "cmVSSetupHelper.h"
 
 class cmGlobalGeneratorFactory;
 class cmake;
@@ -39,7 +40,11 @@ protected:
   // of the toolset is installed
   bool IsWindowsStoreToolsetInstalled() const;
 
+  std::string FindMSBuildCommand() CM_OVERRIDE;
+  std::string FindDevEnvCommand() CM_OVERRIDE;
+
 private:
   class Factory;
+  mutable cmVSSetupAPIHelper vsSetupAPIHelper;
 };
 #endif
diff --git a/Source/cmVSSetupHelper.cxx b/Source/cmVSSetupHelper.cxx
new file mode 100644
index 0000000..d675a2c
--- /dev/null
+++ b/Source/cmVSSetupHelper.cxx
@@ -0,0 +1,395 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include "cmVSSetupHelper.h"
+
+#ifndef VSSetupConstants
+#define VSSetupConstants
+/* clang-format off */
+const IID IID_ISetupConfiguration = {
+  0x42843719, 0xDB4C, 0x46C2,
+  { 0x8E, 0x7C, 0x64, 0xF1, 0x81, 0x6E, 0xFD, 0x5B }
+};
+const IID IID_ISetupConfiguration2 = {
+  0x26AAB78C, 0x4A60, 0x49D6,
+  { 0xAF, 0x3B, 0x3C, 0x35, 0xBC, 0x93, 0x36, 0x5D }
+};
+const IID IID_ISetupPackageReference = {
+  0xda8d8a16, 0xb2b6, 0x4487,
+  { 0xa2, 0xf1, 0x59, 0x4c, 0xcc, 0xcd, 0x6b, 0xf5 }
+};
+const IID IID_ISetupHelper = {
+  0x42b21b78, 0x6192, 0x463e,
+  { 0x87, 0xbf, 0xd5, 0x77, 0x83, 0x8f, 0x1d, 0x5c }
+};
+const IID IID_IEnumSetupInstances = {
+  0x6380BCFF, 0x41D3, 0x4B2E,
+  { 0x8B, 0x2E, 0xBF, 0x8A, 0x68, 0x10, 0xC8, 0x48 }
+};
+const IID IID_ISetupInstance2 = {
+  0x89143C9A, 0x05AF, 0x49B0,
+  { 0xB7, 0x17, 0x72, 0xE2, 0x18, 0xA2, 0x18, 0x5C }
+};
+const IID IID_ISetupInstance = {
+  0xB41463C3, 0x8866, 0x43B5,
+  { 0xBC, 0x33, 0x2B, 0x06, 0x76, 0xF7, 0xF4, 0x2E }
+};
+const CLSID CLSID_SetupConfiguration = {
+  0x177F0C4A, 0x1CD3, 0x4DE7,
+  { 0xA3, 0x2C, 0x71, 0xDB, 0xBB, 0x9F, 0xA3, 0x6D }
+};
+/* clang-format on */
+#endif
+
+const WCHAR* VCToolsetComponent =
+  L"Microsoft.VisualStudio.Component.VC.Tools.x86.x64";
+const WCHAR* Win10SDKComponent =
+  L"Microsoft.VisualStudio.Component.Windows10SDK";
+const WCHAR* Win81SDKComponent =
+  L"Microsoft.VisualStudio.Component.Windows81SDK";
+const WCHAR* ComponentType = L"Component";
+
+cmVSSetupAPIHelper::cmVSSetupAPIHelper()
+  : setupConfig(NULL)
+  , setupConfig2(NULL)
+  , setupHelper(NULL)
+  , initializationFailure(false)
+{
+  comInitialized = CoInitializeEx(NULL, 0);
+  if (SUCCEEDED(comInitialized)) {
+    Initialize();
+  } else {
+    initializationFailure = true;
+  }
+}
+
+cmVSSetupAPIHelper::~cmVSSetupAPIHelper()
+{
+  setupHelper = NULL;
+  setupConfig2 = NULL;
+  setupConfig = NULL;
+  if (SUCCEEDED(comInitialized))
+    CoUninitialize();
+}
+
+bool cmVSSetupAPIHelper::IsVS2017Installed()
+{
+  bool ret = false;
+  if (chosenInstanceInfo.VSInstallLocation.compare(L"") == 0) {
+    ret = EnumerateAndChooseVSInstance();
+  }
+
+  return ret;
+}
+
+bool cmVSSetupAPIHelper::IsWin10SDKInstalled()
+{
+  bool isWin10SDKInstalled = false;
+  if (chosenInstanceInfo.VSInstallLocation.compare(L"") == 0) {
+    if (EnumerateAndChooseVSInstance() &&
+        chosenInstanceInfo.VSInstallLocation.compare(L"") != 0) {
+      isWin10SDKInstalled = chosenInstanceInfo.IsWin10SDKInstalled;
+    }
+  } else {
+    isWin10SDKInstalled = chosenInstanceInfo.IsWin10SDKInstalled;
+  }
+
+  return isWin10SDKInstalled;
+}
+
+bool cmVSSetupAPIHelper::IsWin81SDKInstalled()
+{
+  bool isWin81SDKInstalled = false;
+  if (chosenInstanceInfo.VSInstallLocation.compare(L"") == 0) {
+    if (EnumerateAndChooseVSInstance() &&
+        chosenInstanceInfo.VSInstallLocation.compare(L"") != 0) {
+      isWin81SDKInstalled = chosenInstanceInfo.IsWin81SDKInstalled;
+    }
+  } else {
+    isWin81SDKInstalled = chosenInstanceInfo.IsWin81SDKInstalled;
+  }
+
+  return isWin81SDKInstalled;
+}
+
+bool cmVSSetupAPIHelper::CheckInstalledComponent(
+  SmartCOMPtr<ISetupPackageReference> package, bool& bVCToolset,
+  bool& bWin10SDK, bool& bWin81SDK)
+{
+  bool ret = false;
+  bVCToolset = bWin10SDK = bWin81SDK = false;
+  SmartBSTR bstrId;
+  if (FAILED(package->GetId(&bstrId))) {
+    return ret;
+  }
+
+  SmartBSTR bstrType;
+  if (FAILED(package->GetType(&bstrType))) {
+    return ret;
+  }
+
+  std::wstring id = std::wstring(bstrId);
+  std::wstring type = std::wstring(bstrType);
+  if (id.compare(VCToolsetComponent) == 0 &&
+      type.compare(ComponentType) == 0) {
+    bVCToolset = true;
+    ret = true;
+  }
+
+  // Checks for any version of Win10 SDK. The version is appended at the end of
+  // the
+  // component name ex: Microsoft.VisualStudio.Component.Windows10SDK.10240
+  if (id.find(Win10SDKComponent) != std::wstring::npos &&
+      type.compare(ComponentType) == 0) {
+    bWin10SDK = true;
+    ret = true;
+  }
+
+  if (id.compare(Win81SDKComponent) == 0 && type.compare(ComponentType) == 0) {
+    bWin81SDK = true;
+    ret = true;
+  }
+
+  return ret;
+}
+
+// Gather additional info such as if VCToolset, WinSDKs are installed, location
+// of VS and version information.
+bool cmVSSetupAPIHelper::GetVSInstanceInfo(
+  SmartCOMPtr<ISetupInstance2> pInstance, VSInstanceInfo& vsInstanceInfo)
+{
+  bool isVCToolSetInstalled = false;
+  if (pInstance == NULL)
+    return false;
+
+  SmartBSTR bstrId;
+  if (SUCCEEDED(pInstance->GetInstanceId(&bstrId))) {
+    vsInstanceInfo.InstanceId = std::wstring(bstrId);
+  } else {
+    return false;
+  }
+
+  InstanceState state;
+  if (FAILED(pInstance->GetState(&state))) {
+    return false;
+  }
+
+  ULONGLONG ullVersion = 0;
+  SmartBSTR bstrVersion;
+  if (FAILED(pInstance->GetInstallationVersion(&bstrVersion))) {
+    return false;
+  } else {
+    vsInstanceInfo.Version = std::wstring(bstrVersion);
+    if (FAILED(setupHelper->ParseVersion(bstrVersion, &ullVersion))) {
+      vsInstanceInfo.ullVersion = 0;
+    } else {
+      vsInstanceInfo.ullVersion = ullVersion;
+    }
+  }
+
+  // Reboot may have been required before the installation path was created.
+  SmartBSTR bstrInstallationPath;
+  if ((eLocal & state) == eLocal) {
+    if (FAILED(pInstance->GetInstallationPath(&bstrInstallationPath))) {
+      return false;
+    } else {
+      vsInstanceInfo.VSInstallLocation = std::wstring(bstrInstallationPath);
+    }
+  }
+
+  // Reboot may have been required before the product package was registered
+  // (last).
+  if ((eRegistered & state) == eRegistered) {
+    SmartCOMPtr<ISetupPackageReference> product;
+    if (FAILED(pInstance->GetProduct(&product)) || !product) {
+      return false;
+    }
+
+    LPSAFEARRAY lpsaPackages;
+    if (FAILED(pInstance->GetPackages(&lpsaPackages)) ||
+        lpsaPackages == NULL) {
+      return false;
+    }
+
+    int lower = lpsaPackages->rgsabound[0].lLbound;
+    int upper = lpsaPackages->rgsabound[0].cElements + lower;
+
+    IUnknown** ppData = (IUnknown**)lpsaPackages->pvData;
+    for (int i = lower; i < upper; i++) {
+      SmartCOMPtr<ISetupPackageReference> package = NULL;
+      if (FAILED(ppData[i]->QueryInterface(IID_ISetupPackageReference,
+                                           (void**)&package)) ||
+          package == NULL)
+        continue;
+
+      bool vcToolsetInstalled = false, win10SDKInstalled = false,
+           win81SDkInstalled = false;
+      bool ret = CheckInstalledComponent(package, vcToolsetInstalled,
+                                         win10SDKInstalled, win81SDkInstalled);
+      if (ret) {
+        isVCToolSetInstalled |= vcToolsetInstalled;
+        vsInstanceInfo.IsWin10SDKInstalled |= win10SDKInstalled;
+        vsInstanceInfo.IsWin81SDKInstalled |= win81SDkInstalled;
+      }
+    }
+
+    SafeArrayDestroy(lpsaPackages);
+  }
+
+  return isVCToolSetInstalled;
+}
+
+bool cmVSSetupAPIHelper::GetVSInstanceInfo(std::string& vsInstallLocation)
+{
+  vsInstallLocation = "";
+  bool isInstalled = false;
+
+  if (chosenInstanceInfo.VSInstallLocation.compare(L"") == 0) {
+    isInstalled = EnumerateAndChooseVSInstance();
+  }
+
+  // Enumerate and choose best VS instance
+  if (chosenInstanceInfo.VSInstallLocation.compare(L"") != 0) {
+    std::string str(chosenInstanceInfo.VSInstallLocation.begin(),
+                    chosenInstanceInfo.VSInstallLocation.end());
+    vsInstallLocation = str;
+    isInstalled = true;
+  }
+
+  return isInstalled;
+}
+
+bool cmVSSetupAPIHelper::EnumerateAndChooseVSInstance()
+{
+  bool isVSInstanceExists = false;
+  if (chosenInstanceInfo.VSInstallLocation.compare(L"") != 0) {
+    return true;
+  }
+
+  if (initializationFailure || setupConfig == NULL || setupConfig2 == NULL ||
+      setupHelper == NULL)
+    return false;
+
+  std::vector<VSInstanceInfo> vecVSInstances;
+  SmartCOMPtr<IEnumSetupInstances> enumInstances = NULL;
+  if (FAILED(
+        setupConfig2->EnumInstances((IEnumSetupInstances**)&enumInstances)) ||
+      !enumInstances) {
+    return false;
+  }
+
+  SmartCOMPtr<ISetupInstance> instance;
+  while (SUCCEEDED(enumInstances->Next(1, &instance, NULL)) && instance) {
+    SmartCOMPtr<ISetupInstance2> instance2 = NULL;
+    if (FAILED(
+          instance->QueryInterface(IID_ISetupInstance2, (void**)&instance2)) ||
+        !instance2) {
+      instance = NULL;
+      continue;
+    }
+
+    VSInstanceInfo instanceInfo;
+    bool isInstalled = GetVSInstanceInfo(instance2, instanceInfo);
+    instance = instance2 = NULL;
+
+    if (isInstalled) {
+      vecVSInstances.push_back(instanceInfo);
+    }
+  }
+
+  if (vecVSInstances.size() > 0) {
+    isVSInstanceExists = true;
+    int index = ChooseVSInstance(vecVSInstances);
+    chosenInstanceInfo = vecVSInstances[index];
+  }
+
+  return isVSInstanceExists;
+}
+
+int cmVSSetupAPIHelper::ChooseVSInstance(
+  const std::vector<VSInstanceInfo>& vecVSInstances)
+{
+  if (vecVSInstances.size() == 0)
+    return -1;
+
+  if (vecVSInstances.size() == 1)
+    return 0;
+
+  unsigned int chosenIndex = 0;
+  for (unsigned int i = 1; i < vecVSInstances.size(); i++) {
+    // If the current has Win10 SDK but not the chosen one, then choose the
+    // current VS instance
+    if (!vecVSInstances[chosenIndex].IsWin10SDKInstalled &&
+        vecVSInstances[i].IsWin10SDKInstalled) {
+      chosenIndex = i;
+      continue;
+    }
+
+    // If the chosen one has Win10 SDK but the current one is not, then look at
+    // the next VS instance even the current
+    // instance version may be higher
+    if (vecVSInstances[chosenIndex].IsWin10SDKInstalled &&
+        !vecVSInstances[i].IsWin10SDKInstalled) {
+      continue;
+    }
+
+    // If both chosen one and current one doesn't have Win10 SDK but the
+    // current one has Win8.1 SDK installed,
+    // then choose the current one
+    if (!vecVSInstances[chosenIndex].IsWin10SDKInstalled &&
+        !vecVSInstances[i].IsWin10SDKInstalled &&
+        !vecVSInstances[chosenIndex].IsWin81SDKInstalled &&
+        vecVSInstances[i].IsWin81SDKInstalled) {
+      chosenIndex = i;
+      continue;
+    }
+
+    // If there is no difference in WinSDKs then look for the highest version
+    // of installed VS
+    if ((vecVSInstances[chosenIndex].IsWin10SDKInstalled ==
+         vecVSInstances[i].IsWin10SDKInstalled) &&
+        (vecVSInstances[chosenIndex].IsWin81SDKInstalled ==
+         vecVSInstances[i].IsWin81SDKInstalled) &&
+        vecVSInstances[chosenIndex].Version < vecVSInstances[i].Version) {
+      chosenIndex = i;
+      continue;
+    }
+  }
+
+  return chosenIndex;
+}
+
+bool cmVSSetupAPIHelper::Initialize()
+{
+  if (initializationFailure)
+    return false;
+
+  if (FAILED(comInitialized)) {
+    initializationFailure = true;
+    return false;
+  }
+
+  if (FAILED(setupConfig.CoCreateInstance(CLSID_SetupConfiguration, NULL,
+                                          IID_ISetupConfiguration,
+                                          CLSCTX_INPROC_SERVER)) ||
+      setupConfig == NULL) {
+    initializationFailure = true;
+    return false;
+  }
+
+  if (FAILED(setupConfig.QueryInterface(IID_ISetupConfiguration2,
+                                        (void**)&setupConfig2)) ||
+      setupConfig2 == NULL) {
+    initializationFailure = true;
+    return false;
+  }
+
+  if (FAILED(
+        setupConfig.QueryInterface(IID_ISetupHelper, (void**)&setupHelper)) ||
+      setupHelper == NULL) {
+    initializationFailure = true;
+    return false;
+  }
+
+  initializationFailure = false;
+  return true;
+}
diff --git a/Source/cmVSSetupHelper.h b/Source/cmVSSetupHelper.h
new file mode 100644
index 0000000..d2f514c
--- /dev/null
+++ b/Source/cmVSSetupHelper.h
@@ -0,0 +1,154 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#ifndef cmVSSetupHelper_h
+#define cmVSSetupHelper_h
+
+#ifndef NOMINMAX
+#define NOMINMAX // Undefine min and max defined by windows.h
+#endif
+
+// Published by Visual Studio Setup team
+#include "cmvssetup/Setup.Configuration.h"
+
+#include <string>
+#include <vector>
+
+#include <windows.h>
+
+template <class T>
+class SmartCOMPtr
+{
+public:
+  SmartCOMPtr() { ptr = NULL; }
+  SmartCOMPtr(T* p)
+  {
+    ptr = p;
+    if (ptr != NULL)
+      ptr->AddRef();
+  }
+  SmartCOMPtr(const SmartCOMPtr<T>& sptr)
+  {
+    ptr = sptr.ptr;
+    if (ptr != NULL)
+      ptr->AddRef();
+  }
+  T** operator&() { return &ptr; }
+  T* operator->() { return ptr; }
+  T* operator=(T* p)
+  {
+    if (*this != p) {
+      ptr = p;
+      if (ptr != NULL)
+        ptr->AddRef();
+    }
+    return *this;
+  }
+  operator T*() const { return ptr; }
+  template <class I>
+  HRESULT QueryInterface(REFCLSID rclsid, I** pp)
+  {
+    if (pp != NULL) {
+      return ptr->QueryInterface(rclsid, (void**)pp);
+    } else {
+      return E_FAIL;
+    }
+  }
+  HRESULT CoCreateInstance(REFCLSID clsid, IUnknown* pUnknown,
+                           REFIID interfaceId, DWORD dwClsContext = CLSCTX_ALL)
+  {
+    HRESULT hr = ::CoCreateInstance(clsid, pUnknown, dwClsContext, interfaceId,
+                                    (void**)&ptr);
+    return hr;
+  }
+  ~SmartCOMPtr()
+  {
+    if (ptr != NULL)
+      ptr->Release();
+  }
+
+private:
+  T* ptr;
+};
+
+class SmartBSTR
+{
+public:
+  SmartBSTR() { str = NULL; }
+  SmartBSTR(const SmartBSTR& src)
+  {
+    if (src.str != NULL) {
+      str = ::SysAllocStringByteLen((char*)str, ::SysStringByteLen(str));
+    } else {
+      str = ::SysAllocStringByteLen(NULL, 0);
+    }
+  }
+  SmartBSTR& operator=(const SmartBSTR& src)
+  {
+    if (str != src.str) {
+      ::SysFreeString(str);
+      if (src.str != NULL) {
+        str = ::SysAllocStringByteLen((char*)str, ::SysStringByteLen(str));
+      } else {
+        str = ::SysAllocStringByteLen(NULL, 0);
+      }
+    }
+    return *this;
+  }
+  operator BSTR() const { return str; }
+  BSTR* operator&() throw() { return &str; }
+  ~SmartBSTR() throw() { ::SysFreeString(str); }
+private:
+  BSTR str;
+};
+
+struct VSInstanceInfo
+{
+  std::wstring InstanceId;
+  std::wstring VSInstallLocation;
+  std::wstring Version;
+  ULONGLONG ullVersion;
+  bool IsWin10SDKInstalled;
+  bool IsWin81SDKInstalled;
+
+  VSInstanceInfo()
+  {
+    InstanceId = VSInstallLocation = Version = L"";
+    ullVersion = 0;
+    IsWin10SDKInstalled = IsWin81SDKInstalled = false;
+  }
+};
+
+class cmVSSetupAPIHelper
+{
+public:
+  cmVSSetupAPIHelper();
+  ~cmVSSetupAPIHelper();
+
+  bool IsVS2017Installed();
+  bool GetVSInstanceInfo(std::string& vsInstallLocation);
+  bool IsWin10SDKInstalled();
+  bool IsWin81SDKInstalled();
+
+private:
+  bool Initialize();
+  bool GetVSInstanceInfo(SmartCOMPtr<ISetupInstance2> instance2,
+                         VSInstanceInfo& vsInstanceInfo);
+  bool CheckInstalledComponent(SmartCOMPtr<ISetupPackageReference> package,
+                               bool& bVCToolset, bool& bWin10SDK,
+                               bool& bWin81SDK);
+  int ChooseVSInstance(const std::vector<VSInstanceInfo>& vecVSInstances);
+  bool EnumerateAndChooseVSInstance();
+
+  // COM ptrs to query about VS instances
+  SmartCOMPtr<ISetupConfiguration> setupConfig;
+  SmartCOMPtr<ISetupConfiguration2> setupConfig2;
+  SmartCOMPtr<ISetupHelper> setupHelper;
+  // used to indicate failure in Initialize(), so we don't have to call again
+  bool initializationFailure;
+  // indicated if COM initialization is successful
+  HRESULT comInitialized;
+  // current best instance of VS selected
+  VSInstanceInfo chosenInstanceInfo;
+};
+
+#endif
diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index 733e0e4..6141f50 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -64,6 +64,7 @@
 #include "cmGlobalVisualStudio71Generator.h"
 #include "cmGlobalVisualStudio8Generator.h"
 #include "cmGlobalVisualStudio9Generator.h"
+#include "cmVSSetupHelper.h"
 
 #define CMAKE_HAVE_VS_GENERATORS
 #endif
@@ -1470,18 +1471,23 @@ void cmake::CreateDefaultGlobalGenerator()
     "\\Setup\\VC;ProductDir", //
     ";InstallDir"             //
   };
-  for (VSVersionedGenerator const* g = cmArrayBegin(vsGenerators);
-       found.empty() && g != cmArrayEnd(vsGenerators); ++g) {
-    for (const char* const* v = cmArrayBegin(vsVariants);
-         found.empty() && v != cmArrayEnd(vsVariants); ++v) {
-      for (const char* const* e = cmArrayBegin(vsEntries);
-           found.empty() && e != cmArrayEnd(vsEntries); ++e) {
-        std::string const reg = vsregBase + *v + g->MSVersion + *e;
-        std::string dir;
-        if (cmSystemTools::ReadRegistryValue(reg, dir,
-                                             cmSystemTools::KeyWOW64_32) &&
-            cmSystemTools::PathExists(dir)) {
-          found = g->GeneratorName;
+  cmVSSetupAPIHelper vsSetupAPIHelper;
+  if (vsSetupAPIHelper.IsVS2017Installed()) {
+    found = "Visual Studio 15 2017";
+  } else {
+    for (VSVersionedGenerator const* g = cmArrayBegin(vsGenerators);
+         found.empty() && g != cmArrayEnd(vsGenerators); ++g) {
+      for (const char* const* v = cmArrayBegin(vsVariants);
+           found.empty() && v != cmArrayEnd(vsVariants); ++v) {
+        for (const char* const* e = cmArrayBegin(vsEntries);
+             found.empty() && e != cmArrayEnd(vsEntries); ++e) {
+          std::string const reg = vsregBase + *v + g->MSVersion + *e;
+          std::string dir;
+          if (cmSystemTools::ReadRegistryValue(reg, dir,
+                                               cmSystemTools::KeyWOW64_32) &&
+              cmSystemTools::PathExists(dir)) {
+            found = g->GeneratorName;
+          }
         }
       }
     }
diff --git a/Utilities/cmvssetup/.gitattributes b/Utilities/cmvssetup/.gitattributes
new file mode 100644
index 0000000..562b12e
--- /dev/null
+++ b/Utilities/cmvssetup/.gitattributes
@@ -0,0 +1 @@
+* -whitespace
diff --git a/Utilities/cmvssetup/Setup.Configuration.h b/Utilities/cmvssetup/Setup.Configuration.h
new file mode 100644
index 0000000..6c9d8f9
--- /dev/null
+++ b/Utilities/cmvssetup/Setup.Configuration.h
@@ -0,0 +1,991 @@
+// <copyright file="Setup.Configuration.h" company="Microsoft Corporation">
+// Copyright (C) Microsoft Corporation. All rights reserved.
+// </copyright>
+
+// This file is licensed under "The MIT License(MIT)".
+// This file is released by Visual Studio setup team for consumption by external applications.
+// For more information please look at this git repo https://github.com/microsoft/vs-setup-samples
+
+#ifndef SetupConfiguration_h
+#define SetupConfiguration_h
+
+#include <objbase.h>
+
+// Constants
+//
+#ifndef E_NOTFOUND
+#define E_NOTFOUND HRESULT_FROM_WIN32(ERROR_NOT_FOUND)
+#endif
+
+#ifndef E_FILENOTFOUND
+#define E_FILENOTFOUND HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND)
+#endif
+
+#if defined(_WIN32) && !defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR)
+
+#ifndef _Outptr_result_maybenull_
+#define _Outptr_result_maybenull_
+#endif
+#ifndef _Out_writes_to_
+#define _Out_writes_to_(x,y)
+#endif
+#ifndef _Reserved_
+#define _Reserved_
+#endif
+#ifndef MAXUINT
+#define MAXUINT     ((UINT)~((UINT)0))
+#endif
+
+// Enumerations
+//
+/// <summary>
+/// The state of an instance.
+/// </summary>
+enum InstanceState
+{
+    /// <summary>
+    /// The instance state has not been determined.
+    /// </summary>
+    eNone = 0,
+
+    /// <summary>
+    /// The instance installation path exists.
+    /// </summary>
+    eLocal = 1,
+
+    /// <summary>
+    /// A product is registered to the instance.
+    /// </summary>
+    eRegistered = 2,
+
+    /// <summary>
+    /// No reboot is required for the instance.
+    /// </summary>
+    eNoRebootRequired = 4,
+
+    /// <summary>
+    /// The instance represents a complete install.
+    /// </summary>
+    eComplete = MAXUINT,
+};
+
+// Forward interface declarations
+//
+#ifndef __ISetupInstance_FWD_DEFINED__
+#define __ISetupInstance_FWD_DEFINED__
+typedef struct ISetupInstance ISetupInstance;
+#endif
+
+#ifndef __ISetupInstance2_FWD_DEFINED__
+#define __ISetupInstance2_FWD_DEFINED__
+typedef struct ISetupInstance2 ISetupInstance2;
+#endif
+
+#ifndef __IEnumSetupInstances_FWD_DEFINED__
+#define __IEnumSetupInstances_FWD_DEFINED__
+typedef struct IEnumSetupInstances IEnumSetupInstances;
+#endif
+
+#ifndef __ISetupConfiguration_FWD_DEFINED__
+#define __ISetupConfiguration_FWD_DEFINED__
+typedef struct ISetupConfiguration ISetupConfiguration;
+#endif
+
+#ifndef __ISetupConfiguration2_FWD_DEFINED__
+#define __ISetupConfiguration2_FWD_DEFINED__
+typedef struct ISetupConfiguration2 ISetupConfiguration2;
+#endif
+
+#ifndef __ISetupPackageReference_FWD_DEFINED__
+#define __ISetupPackageReference_FWD_DEFINED__
+typedef struct ISetupPackageReference ISetupPackageReference;
+#endif
+
+#ifndef __ISetupHelper_FWD_DEFINED__
+#define __ISetupHelper_FWD_DEFINED__
+typedef struct ISetupHelper ISetupHelper;
+#endif
+
+// Forward class declarations
+//
+#ifndef __SetupConfiguration_FWD_DEFINED__
+#define __SetupConfiguration_FWD_DEFINED__
+
+#ifdef __cplusplus
+typedef class SetupConfiguration SetupConfiguration;
+#endif
+
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Interface definitions
+//
+EXTERN_C const IID IID_ISetupInstance;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Information about an instance of a product.
+/// </summary>
+struct DECLSPEC_UUID("B41463C3-8866-43B5-BC33-2B0676F7F42E") DECLSPEC_NOVTABLE ISetupInstance : public IUnknown
+{
+    /// <summary>
+    /// Gets the instance identifier (should match the name of the parent instance directory).
+    /// </summary>
+    /// <param name="pbstrInstanceId">The instance identifier.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+    STDMETHOD(GetInstanceId)(
+        _Out_ BSTR* pbstrInstanceId
+        ) = 0;
+
+    /// <summary>
+    /// Gets the local date and time when the installation was originally installed.
+    /// </summary>
+    /// <param name="pInstallDate">The local date and time when the installation was originally installed.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetInstallDate)(
+        _Out_ LPFILETIME pInstallDate
+        ) = 0;
+
+    /// <summary>
+    /// Gets the unique name of the installation, often indicating the branch and other information used for telemetry.
+    /// </summary>
+    /// <param name="pbstrInstallationName">The unique name of the installation, often indicating the branch and other information used for telemetry.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetInstallationName)(
+        _Out_ BSTR* pbstrInstallationName
+        ) = 0;
+
+    /// <summary>
+    /// Gets the path to the installation root of the product.
+    /// </summary>
+    /// <param name="pbstrInstallationPath">The path to the installation root of the product.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetInstallationPath)(
+        _Out_ BSTR* pbstrInstallationPath
+        ) = 0;
+
+    /// <summary>
+    /// Gets the version of the product installed in this instance.
+    /// </summary>
+    /// <param name="pbstrInstallationVersion">The version of the product installed in this instance.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetInstallationVersion)(
+        _Out_ BSTR* pbstrInstallationVersion
+        ) = 0;
+
+    /// <summary>
+    /// Gets the display name (title) of the product installed in this instance.
+    /// </summary>
+    /// <param name="lcid">The LCID for the display name.</param>
+    /// <param name="pbstrDisplayName">The display name (title) of the product installed in this instance.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetDisplayName)(
+        _In_ LCID lcid,
+        _Out_ BSTR* pbstrDisplayName
+        ) = 0;
+
+    /// <summary>
+    /// Gets the description of the product installed in this instance.
+    /// </summary>
+    /// <param name="lcid">The LCID for the description.</param>
+    /// <param name="pbstrDescription">The description of the product installed in this instance.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(GetDescription)(
+        _In_ LCID lcid,
+        _Out_ BSTR* pbstrDescription
+        ) = 0;
+
+    /// <summary>
+    /// Resolves the optional relative path to the root path of the instance.
+    /// </summary>
+    /// <param name="pwszRelativePath">A relative path within the instance to resolve, or NULL to get the root path.</param>
+    /// <param name="pbstrAbsolutePath">The full path to the optional relative path within the instance. If the relative path is NULL, the root path will always terminate in a backslash.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+    STDMETHOD(ResolvePath)(
+        _In_opt_z_ LPCOLESTR pwszRelativePath,
+        _Out_ BSTR* pbstrAbsolutePath
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupInstance2;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Information about an instance of a product.
+/// </summary>
+struct DECLSPEC_UUID("89143C9A-05AF-49B0-B717-72E218A2185C") DECLSPEC_NOVTABLE ISetupInstance2 : public ISetupInstance
+{
+    /// <summary>
+    /// Gets the state of the instance.
+    /// </summary>
+    /// <param name="pState">The state of the instance.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+    STDMETHOD(GetState)(
+        _Out_ InstanceState* pState
+        ) = 0;
+
+    /// <summary>
+    /// Gets an array of package references registered to the instance.
+    /// </summary>
+    /// <param name="ppsaPackages">Pointer to an array of <see cref="ISetupPackageReference"/>.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the packages property is not defined.</returns>
+    STDMETHOD(GetPackages)(
+        _Out_ LPSAFEARRAY* ppsaPackages
+        ) = 0;
+
+    /// <summary>
+    /// Gets a pointer to the <see cref="ISetupPackageReference"/> that represents the registered product.
+    /// </summary>
+    /// <param name="ppPackage">Pointer to an instance of <see cref="ISetupPackageReference"/>. This may be NULL if <see cref="GetState"/> does not return <see cref="eComplete"/>.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the packages property is not defined.</returns>
+    STDMETHOD(GetProduct)(
+        _Outptr_result_maybenull_ ISetupPackageReference** ppPackage
+        ) = 0;
+
+    /// <summary>
+    /// Gets the relative path to the product application, if available.
+    /// </summary>
+    /// <param name="pbstrProductPath">The relative path to the product application, if available.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+    STDMETHOD(GetProductPath)(
+        _Outptr_result_maybenull_ BSTR* pbstrProductPath
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_IEnumSetupInstances;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// A enumerator of installed <see cref="ISetupInstance"/> objects.
+/// </summary>
+struct DECLSPEC_UUID("6380BCFF-41D3-4B2E-8B2E-BF8A6810C848") DECLSPEC_NOVTABLE IEnumSetupInstances : public IUnknown
+{
+    /// <summary>
+    /// Retrieves the next set of product instances in the enumeration sequence.
+    /// </summary>
+    /// <param name="celt">The number of product instances to retrieve.</param>
+    /// <param name="rgelt">A pointer to an array of <see cref="ISetupInstance"/>.</param>
+    /// <param name="pceltFetched">A pointer to the number of product instances retrieved. If celt is 1 this parameter may be NULL.</param>
+    /// <returns>S_OK if the number of elements were fetched, S_FALSE if nothing was fetched (at end of enumeration), E_INVALIDARG if celt is greater than 1 and pceltFetched is NULL, or E_OUTOFMEMORY if an <see cref="ISetupInstance"/> could not be allocated.</returns>
+    STDMETHOD(Next)(
+        _In_ ULONG celt,
+        _Out_writes_to_(celt, *pceltFetched) ISetupInstance** rgelt,
+        _Out_opt_ _Deref_out_range_(0, celt) ULONG* pceltFetched
+        ) = 0;
+
+    /// <summary>
+    /// Skips the next set of product instances in the enumeration sequence.
+    /// </summary>
+    /// <param name="celt">The number of product instances to skip.</param>
+    /// <returns>S_OK if the number of elements could be skipped; otherwise, S_FALSE;</returns>
+    STDMETHOD(Skip)(
+        _In_ ULONG celt
+        ) = 0;
+
+    /// <summary>
+    /// Resets the enumeration sequence to the beginning.
+    /// </summary>
+    /// <returns>Always returns S_OK;</returns>
+    STDMETHOD(Reset)(void) = 0;
+
+    /// <summary>
+    /// Creates a new enumeration object in the same state as the current enumeration object: the new object points to the same place in the enumeration sequence.
+    /// </summary>
+    /// <param name="ppenum">A pointer to a pointer to a new <see cref="IEnumSetupInstances"/> interface. If the method fails, this parameter is undefined.</param>
+    /// <returns>S_OK if a clone was returned; otherwise, E_OUTOFMEMORY.</returns>
+    STDMETHOD(Clone)(
+        _Deref_out_opt_ IEnumSetupInstances** ppenum
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupConfiguration;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Gets information about product instances set up on the machine.
+/// </summary>
+struct DECLSPEC_UUID("42843719-DB4C-46C2-8E7C-64F1816EFD5B") DECLSPEC_NOVTABLE ISetupConfiguration : public IUnknown
+{
+    /// <summary>
+    /// Enumerates all completed product instances installed.
+    /// </summary>
+    /// <param name="ppEnumInstances">An enumeration of completed, installed product instances.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(EnumInstances)(
+        _Out_ IEnumSetupInstances** ppEnumInstances
+        ) = 0;
+
+    /// <summary>
+    /// Gets the instance for the current process path.
+    /// </summary>
+    /// <param name="ppInstance">The instance for the current process path.</param>
+    /// <returns>The instance for the current process path, or E_NOTFOUND if not found.</returns>
+    STDMETHOD(GetInstanceForCurrentProcess)(
+        _Out_ ISetupInstance** ppInstance
+        ) = 0;
+
+    /// <summary>
+    /// Gets the instance for the given path.
+    /// </summary>
+    /// <param name="ppInstance">The instance for the given path.</param>
+    /// <returns>The instance for the given path, or E_NOTFOUND if not found.</returns>
+    STDMETHOD(GetInstanceForPath)(
+        _In_z_ LPCWSTR wzPath,
+        _Out_ ISetupInstance** ppInstance
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupConfiguration2;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Gets information about product instances.
+/// </summary>
+struct DECLSPEC_UUID("26AAB78C-4A60-49D6-AF3B-3C35BC93365D") DECLSPEC_NOVTABLE ISetupConfiguration2 : public ISetupConfiguration
+{
+    /// <summary>
+    /// Enumerates all product instances.
+    /// </summary>
+    /// <param name="ppEnumInstances">An enumeration of all product instances.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(EnumAllInstances)(
+        _Out_ IEnumSetupInstances** ppEnumInstances
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupPackageReference;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// A reference to a package.
+/// </summary>
+struct DECLSPEC_UUID("da8d8a16-b2b6-4487-a2f1-594ccccd6bf5") DECLSPEC_NOVTABLE ISetupPackageReference : public IUnknown
+{
+    /// <summary>
+    /// Gets the general package identifier.
+    /// </summary>
+    /// <param name="pbstrId">The general package identifier.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetId)(
+        _Out_ BSTR* pbstrId
+        ) = 0;
+
+    /// <summary>
+    /// Gets the version of the package.
+    /// </summary>
+    /// <param name="pbstrVersion">The version of the package.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetVersion)(
+        _Out_ BSTR* pbstrVersion
+        ) = 0;
+
+    /// <summary>
+    /// Gets the target process architecture of the package.
+    /// </summary>
+    /// <param name="pbstrChip">The target process architecture of the package.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetChip)(
+        _Out_ BSTR* pbstrChip
+        ) = 0;
+
+    /// <summary>
+    /// Gets the language and optional region identifier.
+    /// </summary>
+    /// <param name="pbstrLanguage">The language and optional region identifier.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetLanguage)(
+        _Out_ BSTR* pbstrLanguage
+        ) = 0;
+
+    /// <summary>
+    /// Gets the build branch of the package.
+    /// </summary>
+    /// <param name="pbstrBranch">The build branch of the package.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetBranch)(
+        _Out_ BSTR* pbstrBranch
+        ) = 0;
+
+    /// <summary>
+    /// Gets the type of the package.
+    /// </summary>
+    /// <param name="pbstrType">The type of the package.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetType)(
+        _Out_ BSTR* pbstrType
+        ) = 0;
+
+    /// <summary>
+    /// Gets the unique identifier consisting of all defined tokens.
+    /// </summary>
+    /// <param name="pbstrUniqueId">The unique identifier consisting of all defined tokens.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_UNEXPECTED if no Id was defined (required).</returns>
+    STDMETHOD(GetUniqueId)(
+        _Out_ BSTR* pbstrUniqueId
+        ) = 0;
+};
+#endif
+
+EXTERN_C const IID IID_ISetupHelper;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+/// <summary>
+/// Helper functions.
+/// </summary>
+/// <remarks>
+/// You can query for this interface from the <see cref="SetupConfiguration"/> class.
+/// </remarks>
+struct DECLSPEC_UUID("42b21b78-6192-463e-87bf-d577838f1d5c") DECLSPEC_NOVTABLE ISetupHelper : public IUnknown
+{
+    /// <summary>
+    /// Parses a dotted quad version string into a 64-bit unsigned integer.
+    /// </summary>
+    /// <param name="pwszVersion">The dotted quad version string to parse, e.g. 1.2.3.4.</param>
+    /// <param name="pullVersion">A 64-bit unsigned integer representing the version. You can compare this to other versions.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(ParseVersion)(
+        _In_ LPCOLESTR pwszVersion,
+        _Out_ PULONGLONG pullVersion
+        ) = 0;
+
+    /// <summary>
+    /// Parses a dotted quad version string into a 64-bit unsigned integer.
+    /// </summary>
+    /// <param name="pwszVersionRange">The string containing 1 or 2 dotted quad version strings to parse, e.g. [1.0,) that means 1.0.0.0 or newer.</param>
+    /// <param name="pullMinVersion">A 64-bit unsigned integer representing the minimum version, which may be 0. You can compare this to other versions.</param>
+    /// <param name="pullMaxVersion">A 64-bit unsigned integer representing the maximum version, which may be MAXULONGLONG. You can compare this to other versions.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(ParseVersionRange)(
+        _In_ LPCOLESTR pwszVersionRange,
+        _Out_ PULONGLONG pullMinVersion,
+        _Out_ PULONGLONG pullMaxVersion
+        ) = 0;
+};
+#endif
+
+// Class declarations
+//
+EXTERN_C const CLSID CLSID_SetupConfiguration;
+
+#ifdef __cplusplus
+/// <summary>
+/// This class implements <see cref="ISetupConfiguration"/>, <see cref="ISetupConfiguration2"/>, and <see cref="ISetupHelper"/>.
+/// </summary>
+class DECLSPEC_UUID("177F0C4A-1CD3-4DE7-A32C-71DBBB9FA36D") SetupConfiguration;
+#endif
+
+// Function declarations
+//
+/// <summary>
+/// Gets an <see cref="ISetupConfiguration"/> that provides information about product instances installed on the machine.
+/// </summary>
+/// <param name="ppConfiguration">The <see cref="ISetupConfiguration"/> that provides information about product instances installed on the machine.</param>
+/// <param name="pReserved">Reserved for future use.</param>
+/// <returns>Standard HRESULT indicating success or failure.</returns>
+STDMETHODIMP GetSetupConfiguration(
+    _Out_ ISetupConfiguration** ppConfiguration,
+    _Reserved_ LPVOID pReserved
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#else
+
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+#define VS_SETUP_GCC_DIAGNOSTIC_PUSHED
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
+#endif
+
+#ifndef MAXUINT
+#define MAXUINT     ((UINT)~((UINT)0))
+#endif
+
+#ifndef DECLSPEC_NOVTABLE
+#if (_MSC_VER >= 1100) && defined(__cplusplus)
+#define DECLSPEC_NOVTABLE   __declspec(novtable)
+#else
+#define DECLSPEC_NOVTABLE
+#endif
+#endif
+
+// Enumerations
+//
+/// <summary>
+/// The state of an instance.
+/// </summary>
+enum InstanceState
+{
+  /// <summary>
+  /// The instance state has not been determined.
+  /// </summary>
+  eNone = 0,
+
+  /// <summary>
+  /// The instance installation path exists.
+  /// </summary>
+  eLocal = 1,
+
+  /// <summary>
+  /// A product is registered to the instance.
+  /// </summary>
+  eRegistered = 2,
+
+  /// <summary>
+  /// No reboot is required for the instance.
+  /// </summary>
+  eNoRebootRequired = 4,
+
+  /// <summary>
+  /// The instance represents a complete install.
+  /// </summary>
+  eComplete = MAXUINT,
+};
+
+// Forward interface declarations
+//
+#ifndef __ISetupInstance_FWD_DEFINED__
+#define __ISetupInstance_FWD_DEFINED__
+typedef struct ISetupInstance ISetupInstance;
+#endif
+
+#ifndef __ISetupInstance2_FWD_DEFINED__
+#define __ISetupInstance2_FWD_DEFINED__
+typedef struct ISetupInstance2 ISetupInstance2;
+#endif
+
+#ifndef __IEnumSetupInstances_FWD_DEFINED__
+#define __IEnumSetupInstances_FWD_DEFINED__
+typedef struct IEnumSetupInstances IEnumSetupInstances;
+#endif
+
+#ifndef __ISetupConfiguration_FWD_DEFINED__
+#define __ISetupConfiguration_FWD_DEFINED__
+typedef struct ISetupConfiguration ISetupConfiguration;
+#endif
+
+#ifndef __ISetupConfiguration2_FWD_DEFINED__
+#define __ISetupConfiguration2_FWD_DEFINED__
+typedef struct ISetupConfiguration2 ISetupConfiguration2;
+#endif
+
+#ifndef __ISetupPackageReference_FWD_DEFINED__
+#define __ISetupPackageReference_FWD_DEFINED__
+typedef struct ISetupPackageReference ISetupPackageReference;
+#endif
+
+#ifndef __ISetupHelper_FWD_DEFINED__
+#define __ISetupHelper_FWD_DEFINED__
+typedef struct ISetupHelper ISetupHelper;
+#endif
+
+// Forward class declarations
+//
+#ifndef __SetupConfiguration_FWD_DEFINED__
+#define __SetupConfiguration_FWD_DEFINED__
+
+#ifdef __cplusplus
+typedef class SetupConfiguration SetupConfiguration;
+#endif
+
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+  // Interface definitions
+  //
+  EXTERN_C const IID IID_ISetupInstance;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+  /// <summary>
+  /// Information about an instance of a product.
+  /// </summary>
+  struct DECLSPEC_UUID("B41463C3-8866-43B5-BC33-2B0676F7F42E") DECLSPEC_NOVTABLE ISetupInstance : public IUnknown
+  {
+    /// <summary>
+    /// Gets the instance identifier (should match the name of the parent instance directory).
+    /// </summary>
+    /// <param name="pbstrInstanceId">The instance identifier.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+    STDMETHOD(GetInstanceId)(
+      BSTR* pbstrInstanceId
+      ) = 0;
+
+  /// <summary>
+  /// Gets the local date and time when the installation was originally installed.
+  /// </summary>
+  /// <param name="pInstallDate">The local date and time when the installation was originally installed.</param>
+  /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+  STDMETHOD(GetInstallDate)(
+    LPFILETIME pInstallDate
+    ) = 0;
+
+  /// <summary>
+  /// Gets the unique name of the installation, often indicating the branch and other information used for telemetry.
+  /// </summary>
+  /// <param name="pbstrInstallationName">The unique name of the installation, often indicating the branch and other information used for telemetry.</param>
+  /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+  STDMETHOD(GetInstallationName)(
+    BSTR* pbstrInstallationName
+    ) = 0;
+
+  /// <summary>
+  /// Gets the path to the installation root of the product.
+  /// </summary>
+  /// <param name="pbstrInstallationPath">The path to the installation root of the product.</param>
+  /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+  STDMETHOD(GetInstallationPath)(
+    BSTR* pbstrInstallationPath
+    ) = 0;
+
+  /// <summary>
+  /// Gets the version of the product installed in this instance.
+  /// </summary>
+  /// <param name="pbstrInstallationVersion">The version of the product installed in this instance.</param>
+  /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+  STDMETHOD(GetInstallationVersion)(
+    BSTR* pbstrInstallationVersion
+    ) = 0;
+
+  /// <summary>
+  /// Gets the display name (title) of the product installed in this instance.
+  /// </summary>
+  /// <param name="lcid">The LCID for the display name.</param>
+  /// <param name="pbstrDisplayName">The display name (title) of the product installed in this instance.</param>
+  /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+  STDMETHOD(GetDisplayName)(
+    LCID lcid,
+    BSTR* pbstrDisplayName
+    ) = 0;
+
+  /// <summary>
+  /// Gets the description of the product installed in this instance.
+  /// </summary>
+  /// <param name="lcid">The LCID for the description.</param>
+  /// <param name="pbstrDescription">The description of the product installed in this instance.</param>
+  /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+  STDMETHOD(GetDescription)(
+    LCID lcid,
+    BSTR* pbstrDescription
+    ) = 0;
+
+  /// <summary>
+  /// Resolves the optional relative path to the root path of the instance.
+  /// </summary>
+  /// <param name="pwszRelativePath">A relative path within the instance to resolve, or NULL to get the root path.</param>
+  /// <param name="pbstrAbsolutePath">The full path to the optional relative path within the instance. If the relative path is NULL, the root path will always terminate in a backslash.</param>
+  /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the property is not defined.</returns>
+  STDMETHOD(ResolvePath)(
+    LPCOLESTR pwszRelativePath,
+    BSTR* pbstrAbsolutePath
+    ) = 0;
+  };
+#endif
+
+  EXTERN_C const IID IID_ISetupInstance2;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+  /// <summary>
+  /// Information about an instance of a product.
+  /// </summary>
+  struct DECLSPEC_UUID("89143C9A-05AF-49B0-B717-72E218A2185C") DECLSPEC_NOVTABLE ISetupInstance2 : public ISetupInstance
+  {
+    /// <summary>
+    /// Gets the state of the instance.
+    /// </summary>
+    /// <param name="pState">The state of the instance.</param>
+    /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+    STDMETHOD(GetState)(
+      InstanceState* pState
+      ) = 0;
+
+  /// <summary>
+  /// Gets an array of package references registered to the instance.
+  /// </summary>
+  /// <param name="ppsaPackages">Pointer to an array of <see cref="ISetupPackageReference"/>.</param>
+  /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the packages property is not defined.</returns>
+  STDMETHOD(GetPackages)(
+    LPSAFEARRAY* ppsaPackages
+    ) = 0;
+
+  /// <summary>
+  /// Gets a pointer to the <see cref="ISetupPackageReference"/> that represents the registered product.
+  /// </summary>
+  /// <param name="ppPackage">Pointer to an instance of <see cref="ISetupPackageReference"/>. This may be NULL if <see cref="GetState"/> does not return <see cref="eComplete"/>.</param>
+  /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the packages property is not defined.</returns>
+  STDMETHOD(GetProduct)(
+    ISetupPackageReference** ppPackage
+    ) = 0;
+
+  /// <summary>
+  /// Gets the relative path to the product application, if available.
+  /// </summary>
+  /// <param name="pbstrProductPath">The relative path to the product application, if available.</param>
+  /// <returns>Standard HRESULT indicating success or failure, including E_FILENOTFOUND if the instance state does not exist.</returns>
+  STDMETHOD(GetProductPath)(
+    BSTR* pbstrProductPath
+    ) = 0;
+  };
+#endif
+
+  EXTERN_C const IID IID_IEnumSetupInstances;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+  /// <summary>
+  /// A enumerator of installed <see cref="ISetupInstance"/> objects.
+  /// </summary>
+  struct DECLSPEC_UUID("6380BCFF-41D3-4B2E-8B2E-BF8A6810C848") DECLSPEC_NOVTABLE IEnumSetupInstances : public IUnknown
+  {
+    /// <summary>
+    /// Retrieves the next set of product instances in the enumeration sequence.
+    /// </summary>
+    /// <param name="celt">The number of product instances to retrieve.</param>
+    /// <param name="rgelt">A pointer to an array of <see cref="ISetupInstance"/>.</param>
+    /// <param name="pceltFetched">A pointer to the number of product instances retrieved. If celt is 1 this parameter may be NULL.</param>
+    /// <returns>S_OK if the number of elements were fetched, S_FALSE if nothing was fetched (at end of enumeration), E_INVALIDARG if celt is greater than 1 and pceltFetched is NULL, or E_OUTOFMEMORY if an <see cref="ISetupInstance"/> could not be allocated.</returns>
+    STDMETHOD(Next)(
+      ULONG celt,
+      ISetupInstance** rgelt,
+      ULONG* pceltFetched
+      ) = 0;
+
+  /// <summary>
+  /// Skips the next set of product instances in the enumeration sequence.
+  /// </summary>
+  /// <param name="celt">The number of product instances to skip.</param>
+  /// <returns>S_OK if the number of elements could be skipped; otherwise, S_FALSE;</returns>
+  STDMETHOD(Skip)(
+    ULONG celt
+    ) = 0;
+
+  /// <summary>
+  /// Resets the enumeration sequence to the beginning.
+  /// </summary>
+  /// <returns>Always returns S_OK;</returns>
+  STDMETHOD(Reset)(void) = 0;
+
+  /// <summary>
+  /// Creates a new enumeration object in the same state as the current enumeration object: the new object points to the same place in the enumeration sequence.
+  /// </summary>
+  /// <param name="ppenum">A pointer to a pointer to a new <see cref="IEnumSetupInstances"/> interface. If the method fails, this parameter is undefined.</param>
+  /// <returns>S_OK if a clone was returned; otherwise, E_OUTOFMEMORY.</returns>
+  STDMETHOD(Clone)(
+    IEnumSetupInstances** ppenum
+    ) = 0;
+  };
+#endif
+
+  EXTERN_C const IID IID_ISetupConfiguration;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+  /// <summary>
+  /// Gets information about product instances set up on the machine.
+  /// </summary>
+  struct DECLSPEC_UUID("42843719-DB4C-46C2-8E7C-64F1816EFD5B") DECLSPEC_NOVTABLE ISetupConfiguration : public IUnknown
+  {
+    /// <summary>
+    /// Enumerates all completed product instances installed.
+    /// </summary>
+    /// <param name="ppEnumInstances">An enumeration of completed, installed product instances.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(EnumInstances)(
+      IEnumSetupInstances** ppEnumInstances
+      ) = 0;
+
+  /// <summary>
+  /// Gets the instance for the current process path.
+  /// </summary>
+  /// <param name="ppInstance">The instance for the current process path.</param>
+  /// <returns>The instance for the current process path, or E_NOTFOUND if not found.</returns>
+  STDMETHOD(GetInstanceForCurrentProcess)(
+    ISetupInstance** ppInstance
+    ) = 0;
+
+  /// <summary>
+  /// Gets the instance for the given path.
+  /// </summary>
+  /// <param name="ppInstance">The instance for the given path.</param>
+  /// <returns>The instance for the given path, or E_NOTFOUND if not found.</returns>
+  STDMETHOD(GetInstanceForPath)(
+    LPCWSTR wzPath,
+    ISetupInstance** ppInstance
+    ) = 0;
+  };
+#endif
+
+  EXTERN_C const IID IID_ISetupConfiguration2;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+  /// <summary>
+  /// Gets information about product instances.
+  /// </summary>
+  struct DECLSPEC_UUID("26AAB78C-4A60-49D6-AF3B-3C35BC93365D") DECLSPEC_NOVTABLE ISetupConfiguration2 : public ISetupConfiguration
+  {
+    /// <summary>
+    /// Enumerates all product instances.
+    /// </summary>
+    /// <param name="ppEnumInstances">An enumeration of all product instances.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(EnumAllInstances)(
+      IEnumSetupInstances** ppEnumInstances
+      ) = 0;
+  };
+#endif
+
+  EXTERN_C const IID IID_ISetupPackageReference;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+  /// <summary>
+  /// A reference to a package.
+  /// </summary>
+  struct DECLSPEC_UUID("da8d8a16-b2b6-4487-a2f1-594ccccd6bf5") DECLSPEC_NOVTABLE ISetupPackageReference : public IUnknown
+  {
+    /// <summary>
+    /// Gets the general package identifier.
+    /// </summary>
+    /// <param name="pbstrId">The general package identifier.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(GetId)(
+      BSTR* pbstrId
+      ) = 0;
+
+  /// <summary>
+  /// Gets the version of the package.
+  /// </summary>
+  /// <param name="pbstrVersion">The version of the package.</param>
+  /// <returns>Standard HRESULT indicating success or failure.</returns>
+  STDMETHOD(GetVersion)(
+    BSTR* pbstrVersion
+    ) = 0;
+
+  /// <summary>
+  /// Gets the target process architecture of the package.
+  /// </summary>
+  /// <param name="pbstrChip">The target process architecture of the package.</param>
+  /// <returns>Standard HRESULT indicating success or failure.</returns>
+  STDMETHOD(GetChip)(
+    BSTR* pbstrChip
+    ) = 0;
+
+  /// <summary>
+  /// Gets the language and optional region identifier.
+  /// </summary>
+  /// <param name="pbstrLanguage">The language and optional region identifier.</param>
+  /// <returns>Standard HRESULT indicating success or failure.</returns>
+  STDMETHOD(GetLanguage)(
+    BSTR* pbstrLanguage
+    ) = 0;
+
+  /// <summary>
+  /// Gets the build branch of the package.
+  /// </summary>
+  /// <param name="pbstrBranch">The build branch of the package.</param>
+  /// <returns>Standard HRESULT indicating success or failure.</returns>
+  STDMETHOD(GetBranch)(
+    BSTR* pbstrBranch
+    ) = 0;
+
+  /// <summary>
+  /// Gets the type of the package.
+  /// </summary>
+  /// <param name="pbstrType">The type of the package.</param>
+  /// <returns>Standard HRESULT indicating success or failure.</returns>
+  STDMETHOD(GetType)(
+    BSTR* pbstrType
+    ) = 0;
+
+  /// <summary>
+  /// Gets the unique identifier consisting of all defined tokens.
+  /// </summary>
+  /// <param name="pbstrUniqueId">The unique identifier consisting of all defined tokens.</param>
+  /// <returns>Standard HRESULT indicating success or failure, including E_UNEXPECTED if no Id was defined (required).</returns>
+  STDMETHOD(GetUniqueId)(
+    BSTR* pbstrUniqueId
+    ) = 0;
+  };
+#endif
+
+  EXTERN_C const IID IID_ISetupHelper;
+
+#if defined(__cplusplus) && !defined(CINTERFACE)
+  /// <summary>
+  /// Helper functions.
+  /// </summary>
+  /// <remarks>
+  /// You can query for this interface from the <see cref="SetupConfiguration"/> class.
+  /// </remarks>
+  struct DECLSPEC_UUID("42b21b78-6192-463e-87bf-d577838f1d5c") DECLSPEC_NOVTABLE ISetupHelper : public IUnknown
+  {
+    /// <summary>
+    /// Parses a dotted quad version string into a 64-bit unsigned integer.
+    /// </summary>
+    /// <param name="pwszVersion">The dotted quad version string to parse, e.g. 1.2.3.4.</param>
+    /// <param name="pullVersion">A 64-bit unsigned integer representing the version. You can compare this to other versions.</param>
+    /// <returns>Standard HRESULT indicating success or failure.</returns>
+    STDMETHOD(ParseVersion)(
+      LPCOLESTR pwszVersion,
+      PULONGLONG pullVersion
+      ) = 0;
+
+  /// <summary>
+  /// Parses a dotted quad version string into a 64-bit unsigned integer.
+  /// </summary>
+  /// <param name="pwszVersionRange">The string containing 1 or 2 dotted quad version strings to parse, e.g. [1.0,) that means 1.0.0.0 or newer.</param>
+  /// <param name="pullMinVersion">A 64-bit unsigned integer representing the minimum version, which may be 0. You can compare this to other versions.</param>
+  /// <param name="pullMaxVersion">A 64-bit unsigned integer representing the maximum version, which may be MAXULONGLONG. You can compare this to other versions.</param>
+  /// <returns>Standard HRESULT indicating success or failure.</returns>
+  STDMETHOD(ParseVersionRange)(
+    LPCOLESTR pwszVersionRange,
+    PULONGLONG pullMinVersion,
+    PULONGLONG pullMaxVersion
+    ) = 0;
+  };
+#endif
+
+  // Class declarations
+  //
+  EXTERN_C const CLSID CLSID_SetupConfiguration;
+
+#ifdef __cplusplus
+  /// <summary>
+  /// This class implements <see cref="ISetupConfiguration"/>, <see cref="ISetupConfiguration2"/>, and <see cref="ISetupHelper"/>.
+  /// </summary>
+  class DECLSPEC_UUID("177F0C4A-1CD3-4DE7-A32C-71DBBB9FA36D") SetupConfiguration;
+#endif
+
+  // Function declarations
+  //
+  /// <summary>
+  /// Gets an <see cref="ISetupConfiguration"/> that provides information about product instances installed on the machine.
+  /// </summary>
+  /// <param name="ppConfiguration">The <see cref="ISetupConfiguration"/> that provides information about product instances installed on the machine.</param>
+  /// <param name="pReserved">Reserved for future use.</param>
+  /// <returns>Standard HRESULT indicating success or failure.</returns>
+  STDMETHODIMP GetSetupConfiguration(
+    ISetupConfiguration** ppConfiguration,
+    LPVOID pReserved
+  );
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifdef VS_SETUP_GCC_DIAGNOSTIC_PUSHED
+#pragma GCC diagnostic pop
+#undef VS_SETUP_GCC_DIAGNOSTIC_PUSHED
+#endif
+
+#endif
+#endif