Thank you very much, Dragan.

I will use your procedure.

Gerhard

>>Finally found th e reason for my problem:
>>
>>The TEMP dir (%TEMP%) had too many files. I deleted files and all is working fine again.
>>
>>Which leaves as question:
>>
>>How can I automatically delete unnecessary files without "disturbing" programs that rely on one of that files?
>
>Call this on exit:
>

PROCEDURE PurgeTemp
>* 4/9/2001 dragan
>
>	LOCAL lcDir, lcFSpec, lcFsp, lcOnErr, ldDay
>	LOCAL N, aa[1], i
>	lcDir=SYS(2023)
>	lcFsp="*.*"
>	lcOnErr=ON('error')
>	ON ERROR *
>	ldDay=DATE()-3
>	lcFSpec=FORCEPATH(lcFsp, lcDir)
>	N=ADIR(aa, lcFSpec)
>	FOR i=1 TO N
>		IF aa[i,3]<ldDay
>			ERASE (FORCEPATH(aa[i,1], lcDir))
>		ENDIF
>	ENDFOR
>	ON ERROR &lcOnErr
>

>
>The three day limit is to avoid any files which may still be open by some process. If it's in the temp folder and older than three days, I assume it's safe to delete. If it's still used by something, it most probably can't be deleted anyway.
>
>However, this doesn't clear the subfolders below %temp% - but these don't get created daily. They usually crop up only when some software is updated or installed. I delete them manually.