Hi Martin,

I tried that, but I'll try again to make sure. Thanks.

>Hi Joel...
>
>

>DO main.exe
>DO mypro1 IN main.EXE
>

>
>MartinJ
>
>>I feel like this is a VFP 101 issue, but I don't remember how do do this or if it is even possible. I have a main executable that has a hook to call a custom executable. The custom exe adds a menu option, which calls a prg in the main exe. For some reason, it cannot find the program. I tried SET PROC TO MAIN.EXE, but that has no effect. It seems like that (or something like it) worked before, but I'm having no luck. Is there any way around this without modifying the main exe?