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@@ -229,8 +229,10 @@ of the GraphViz package to render nicer diagrams, see the
If you want to produce compressed HTML files (see \ref
cfg_generate_htmlhelp "GENERATE_HTMLHELP") in the configuration file, then
you need the Microsoft HTML help workshop.
-You can download it from
-<a href="https://www.microsoft.com/en-us/download/details.aspx?id=21138">Microsoft</a>.
+In the beginning of 2021 Microsoft took the original page, with a.o. the download links,
+offline the HTML help workshop was already many years in maintenance mode).
+You can download the HTML help workshop from the web archives at
+<a href="http://web.archive.org/web/20160201063255/http://download.microsoft.com/download/0/A/9/0A939EF6-E31C-430F-A3DF-DFAE7960D564/htmlhelp.exe">Installation executable</a>.
If you want to produce Qt Compressed Help files (see \ref
cfg_qhg_location "QHG_LOCATION") in the configuration file, then