>>>BTW, I'm surprised that Mike Cole Member #060649 didn't jump into this thread, since he had the problem just recently. (VFP8, though).
>>
>>Reinstall doesn't fix, I guess; I'm also looking towards the registry for help.
>
>In the registry something was missing in:
>
>HKEY_CLASSES_ROOT/applications/vfp9/shell/open/command, the second arg of vfp9.exe shoud be -SHELLOPEN.

WOW!
On my computer value in the command key is:

gfa%Z-tK+A9`{QH^bpwVVFP9_Professional>`m`q6&Ot!Am,&}LvceH$ -SHELLOPEN "%1"

but in deafult:

"C:\Program Files\Microsoft Visual FoxPro 9\vfp9.exe" -SHELLOPEN "%1"

:-)