> SET PROCEDURE TO myexe.exe ADDITIVE > IF NOT MyFunction(...) > ... > ENDIF > RELEASE PROCEDURE myexe.exe > > But, this forces me to use SET PROCEDURE. How can I avoid that and still be > able to use IF NOT MyFunction? Make myexe.exe your main :) Really, have the main program of myexe.exe accept a (set of) parameter(s) telling it which app to call, so it goes as top in the execution chain; you don't have to call it explicitly, it's already there. Since you call from it via name expression or macro, the app called from it doesn't appear in the project manager etc. The problems on the other side (your app's pjx having no idea of where the routines from myexe are) are discussed in another thread, we talk of that there.