>___________
>
>After using the compatibility mode, I was having trouble using VFP5 to run a .prg I've been
>using on this system for months now. So, VFP5 has been reinstalled. This time not under
>Programs(x86) directory but under c:\devstudio...
>
>I am now able to modify the form and rebuild the project without seeming to have any problems.
>
>Does this make sense to anyone? Could things become corrupted without being apparent?
>
>___________

I think what you are seeing are access and permissions under Windows 7 (as well as Vista). By default, non-administrator users cannot update anything under the Program Files folder. If you google "windows 7 program files access denied" you will find info on how to get around it. I realize you have worked around the problem but if you're going to be using Windows 7 this is an important concept to understand.

It surprises me that there was a problem having VFP5 itself installed there, as long as your project source code was elsewhere. I have VFP9 installed in the default location and don't run into this problem. Maybe it's because I have Administrator rights.

UPDATE: some good info here --

http://www.addictivetips.com/windows-tips/windows-7-access-denied-permission-ownership/