Hi Ronald,

>Will the CLEAR PROGRAM command wipe both the calling program and the external program?

Nope. Usually, it will clear the external program from the cache, but it won't clear the program that is currently executing. Due to a bug in VFP, sometimes it won't even clear the external program until the main program exits. I'm not sure whether this happens in the runtime, but it definitely happens in the development environment.

Christof