Peter,

FWIW, I've seen this problem, too. As you mentioned, the only cure is exiting VFP.

>>>Occasionally I get an error 'Cannot create file c:\whatever\whatever.fxp'. Commands like CLEAR ALL and CLEAR PROGRAM don't help. Also, the fxp-file cannot be deleted. The only thing that seems to help is to QUIT VFP and then restart.
>>>
>>>Who knows the cause?
>>
>>Are you using a version prior to VFP7?
>>
>>VFP7 contains the fix for a similar bug which occurs in previous VFP versions.
>
>- It's the same in VFP6 and VFP7.
>- I've closed and superclosed any and all debug facilities.
>- I've set proc to .
>- I've set libr to .
>- I've done CLEAR PROGRAM / ALL / DLLS /
>- I've tried to toggle various SETtings.
>- I've disabled the virus checker.
>
>Nothing helps. The only thing that helps is quitting and restarting VFP.

Daniel