>On some customer machines I get a general protection fault in DDEREG when I close down my application. I have tried to tie it down to a specific common element but have so far failed miserabley. Under some circumstances I have found that after starting and crashing the app 4 or 6 times it then works fine for until the machine is reset.
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>I know that DDEREG is used to give Visual Fox Pro access to 16 bit API calls and thats about all the documentation I can find. Does anyone know how DDEREG works i.e. is it loaded whenever an app is loaded which contains 16 bit API references or when I use the 16 bit API call?
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>Thank you in advance for any help or advice
>Penda

According to MSKB#Q141815 DDEREG.exe is used by foxtools.fll for calling 16-bit DLLs under Win32 only in VFP 3.
What version on VFP are you using. What OS are you running your application under?