>ExecScript is a function that was new for VFP 8, so it won't work in VFP 6. Anyways, even if it is VFP 9, if the .ini file is not a VFP PRG, it won't work either, so I am not sure what are you trying to do.
It was actually new to VFP 7.0, something that I had put that version based on my experience in programming with VBScript and JavaScript which have that functionality.