>>>I developing VFP application in Windows NT network environment.When I rebuild app,"File access denied" error occured,I ensure that nobody running the application taht I want to rebuilded.
>>>
>>>Has this happened to anyone else?
>>>
>>>Thanks for any comment in advance
>>
>>Do you have write access to that drive/directory/file?
>
>Yes.I have full access in the directory that the app builded for.
>To be more precise,the master program that calling the app running was all the time.Is that the problem ?

I'm not sure that I understand what was running, but if you are running the app or .exe that you are trying to compile to, then you will get the error described.