Ed: Thanks. Why didn't I think of that.
Spencer

>I am running FPD26 under Win98 with no problems. Is there a way to have FPD26 detect whether a previous instance of the program is running?
>>Thanks for your help.
>
>You obviously can't use any of the Win32 API calls, since it's DOS. One trick I've used in the past is to use FCREATE to open a file for low-level I/O in a fixed, known location; if it returns a -1, then either it's already opened by someone, or you don't have the necessary rights to create a file where you've specified (ie you tried writing to a CD, or a network drive where you only have read permissions.
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>Leave the file open as long as the app is running; when FPDOS exits, it'll close the file and the next FPDOS session will be able to do the FCREATE
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>
>>SFried