A good suggestion. Use Control Panel | Add/Remove to Remove All. When you
reinstall make sure you select Yes at the end of the MSDN setup to make the
new install the preferred collection for VS context-sensitivity. This would
reregister the *.col file. Let us know how that goes.
>I have had similar problems and found that to restore the help system
>you must uninstall MSDN then install it again from scratch. Just
>installing doesn't resolve the problem, not sure which you did.
>On Wed, 27 Jan 1999 16:43:31 +0200, Irit Rosdeutscher
>>I've installed Visual Studio 6.0 and its compatible MSDN (from October
>>1998) without any problems.
>>After several weeks I had to re-install the IE on my machine. Ever
>>since, the context senesitive help (F1) stopped working in VS. When I
>>try it I get the error: "Attempting to use an invalid help file.".
>>Of course, there's no problem activating MSDN directly.
>>I tried to re-install MSDN but it didn't help.
>>Is there a simple way to get the F1 working again?