Stephen

I'm assuming you put FOXTOOLS.FLL in the directory of the app ?

Don't take that the wrong way, I'm just wondering if that was the problem.

Kev

>Hello Kevin
>
>I tried the "FirstInstance.prg" and it worked on my pc (had vfp installed) but not on any pc's without vfp full version install
>
>of course they had vfp runtime vfp6r.dll ect ....
>
>do me a favor and tell me if you get it to work.
>Thanks
>
>>Hi
>>
>>I need an app to only be run once at one time.
>>
>>What's the best way to detect if a VFP app is already running ?
>>
>>Thanks
>>Kev