I recently uninstalled and reinstalled FSX because of start up issues.  I use FS9 on 95% of my flights.  My problem is that when I reinstalled FSX now when you click on the help button at the top of the menu bar in FS9, it says registry error.  I have run the registry repair tool from Flight1, but that doesn't seem to help.  I have my FS9 updated to 9.1 and use the no cd .EXE.  I would hate to have to reinstall FS9 and all of my add ons.  It doesn't seem to affect anything involved with running FS9 or installing additional payware, but just bugs me that it is not 100% correct.

Maybe you lost the Win32 Help subsystem and need to reinstall it.

 

 

For 64 bit Windows 7:

 

Windows6.1-KB917607-x64.msu

 

For 32 bit Windows 7:

 

Windows6.1-KB917607-x86.msu

 

 

You can get them here:

 

http://www.microsoft.com/en-us/download/details.aspx?id=91&hash=55MM7gUJn6YqyVn5%2bBmmt5aupZjkMgP%2b%2fLNbpbhjHOa2mlu1gbZ2Yei7jCW9%2bm7doNQeD%2f4GPDdpL%2bXCTxKPEw%3d%3d

 

Henning