1 files changed, 8 insertions, 0 deletions
diff --git a/Source/kwsys/SystemTools.cxx b/Source/kwsys/SystemTools.cxx
index cef2de6..ab90db3 100644
--- a/Source/kwsys/SystemTools.cxx
+++ b/Source/kwsys/SystemTools.cxx
@@ -563,6 +563,14 @@ void SystemTools::ReplaceString(kwsys_stl::string& source,
 static DWORD SystemToolsMakeRegistryMode(DWORD mode,
                                          SystemTools::KeyWOW64 view)
 {
+  // only add the modes when on a system that supports Wow64.
+  static void *wow64p = GetProcAddress(GetModuleHandle("kernel32"),
+                                       "IsWow64Process");
+  if(wow64p == NULL)
+    {
+    return mode;
+    }
+
   if(view == SystemTools::KeyWOW64_32)
     {
     return mode | KWSYS_ST_KEY_WOW64_32KEY;