This seem like a good candidate for a COM. One of the caracteristic of COM, is that there is no UI. Since the code was in FPW, it will be easy to create a COM from it in VFP.

>I think I agree with Craig, "Under 2.x there is no way to totally hide the screen. The FPW SCREEN will appear."
>
>What I have is an exe I wrote in 2.6a, it's called BlackBox.exe
>Ultimately it will be call from within another program, probably written in VB.
>so it'll be:
>vb-code
>vb-code
>vb-code
>=BlackBox("TestFile.IN")
>vb-code
>vb-code
>vb-code
>
>I didn't want the BlackBox to do ANY Screen I/O but apparently I can't stop it from opening that one main window.
>
>I guess they will have to live with it until they show us their stuff and convince us of a business reason to create an update that won't blink the screen.
>
>Since there is no visible UI we could have done it in AWK or something...but the original app was/is in Fox 2.6 so this was the fastest way to make our blackbox...and the boss didn't want to disclose the code as we would have to in a language like awk....May be I'll redo it in VFP or Pascal or C or....After they show us their stuff and convince us of a business reason to create an update that won't blink the screen.