Vista x86 refers to 32-bit versions of Vista (due to the success of Intel's 8086, 286, and 386 processors back in the '70s/'80s) while x64 refers to 64-bit versions. Thus, assuming your OS is indeed 32-bit, the x86 version is the one you want/need. After installation you will be able to access both old and new 'help' files, with the respective executable being chosen automatically.
Hope this helps,
As you probably know Microsoft decided to eliminate the Help File for old programs from Vista. When you click on Help in old programs it just comes up with a window that takes you to a Microsoft site where you can download the files Windows6.0-KB917607-x64.msu and Windows6.0-KB917607-x86.msu, which are not for my system (32).
I found a help file elsewhere which works alright, but Windows won't let me replace the system file with the same name in the Windows folder, so I have to start it manually every time.
Is there any way to replace the Windows file?
Thanks in advance,