Is it VFP8prg.EXE or VFP8prg.APP?

>Hi guys:
>
>I'm having a small problem. We have a rather large vfp6.0 applicaition and I have written an add-in module using vfp8.0.
>
>The addin runs correctly under the 8 runtime outside of the app, but in the app, it loads and runs with the vfp 6 runtimes. This causes a few errors in the functionality.
>
>Is there a way to force the app to load the 8.0 runtime libararys? Has anyone done this? Moving the entire app to 8.0 is out of the question right now.
>
>Thanks in advance.