>>>>>>>>I have VFP6, VFP8 and VFP9 installed on my computer. When I run an exe file that was compiled in VFP9 it crashed immediately with a Fatal Error Exception Code=C0000005. If I compile it in VFP8 it runs fine.
>>>>>>>>
>>>>>>>>VFP9 applications used to run fine on this computer.
>>>>>>>
>>>>>>>Did you delete FoxUser.dbf found on this computer?
>>>>>>>
>>>>>>>Also, please visit the WiKi page about this error.
>>>>>>
>>>>>>On the Wikis Page it was talking about broken FPT file. None of my files have memo fields.
>>>>>>
>>>>>>I did delete the Foxuser files and that made no difference. I recompiled the program in VFP8 and that works. I recompiled in VFP 9 and the crash is back. When the little program starts it immediately open a form. When it crashes it never displays the form.
>>>>>>
>>>>>>By the way, the program runs fine when I have the development system open and just run the main module.
>>>>>>
>>>>>>When I delete the foxuser file and try to run the program it crashes before it has built a new foxuser file. If I open the development program it immediately rebuilds a foxuser program.
>>>>>>
>>>>>>Should I try deleting my VFP 9 and reinstalling it. I had just installed the SP2 a couple weeks ago and a month ago I was not experiencing this problem.
>>>>>
>>>>>I think when we experienced the same problem with my colleague a few years back, we re-installed VFP.
>>>>
>>>>Thanks, I'll try that
>>>
>>>
>>>I removed VFP9 and reinstalled it. Still having the problem.
>>
>>I went to another computer running Vista Pro. I installed the VFP9 Runtimes, and then copied my data files to that computer. My application runs fine there.
>>
>>The problem has somethig to do with running on my main Wondows XP computer.
>
>Sounds like one or more DLLs is damaged (basically something that VFP9 uses that previous versions don't use). It is likely something found in the system32 folder (though it could be winwow64 if you're running 64-bit OS -- though considering that you're mentioning that you're getting problem under XP, and that 64-bit XP is rather rare sight, it's quite likely that it's something in system32 folder).

That sounds like a good guess to me. Another thing I would try is to take good copies of foxuser.* and make them read-only and see if that fixes the problem...that has worked for me a couple times in the past.