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Salvete! I just discovered that winhlp32.exe won't run on Windows7 64bit. I can't run the application, and I can't run hlp files either (but .chm files run fine). How do I make this work?

I have downloaded the Microsoft fix here and restarted my computer, but to no avail. I can see the file winhlp32.exe in my c:\windows directory, but cannot run it. When I do run it, I get Windows' own "Help and Support" entitled, "Why can't I get Help from this program?" which sends me to the link above!

How can I make it work?

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What happens when you run it? – Ramhound Jun 22 '12 at 14:25
Sorry - I should have said that. I just added it to the question. – bgmCoder Jun 22 '12 at 14:28
You installed the x64 version of this hotfix correct? Trying to make sure you installed Windows6.1-KB917607-x64.msu – Ramhound Jun 22 '12 at 14:29
Whoops - I installed the wrong package: Windows6.1-KB958559-x64-RefreshPkg.msu - you got me on that one. Solved. Please add your comment as an answer so I can mark it accepted! – bgmCoder Jun 22 '12 at 14:38
up vote 3 down vote accepted

It appears you attempted to install the 32-bit version of this hotfix.

If you do indeed want to install this hotfix. You need to install 64-bit Windows6.1-KB917607-x64.msu version instead instead of the 32-bit version (Windows6.1-KB917607-x86.msu).

share|improve this answer
Thanks, Ramhound. – bgmCoder Jun 22 '12 at 15:01
The 32-bit version was usable with Windows 8, after updating to 8.1, WinHlp32 "silently" gave up working. This fixed it for me :-) I hope the upgrade to Windows 10 will not break it again. – Wolf Aug 19 '15 at 15:02

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