>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

Stephen,

While I'm not the author of the program, it is similar to the code that I use (and was the subject of an article in FoxPro Advisor). After reviewing the code, I don't see, right off, any problems with 6.0 except that it assumes that the application is an MDI application. This might be a problem if the application is an SDI.

One note to Kevin would be that it uses a variable (hWnd) which is now a property of all VFP forms. I'd re-name if only to avoid confusion.