>Thanks for the info, I will look into that. I thought there was some kind of Exe commandline as well, in which case it would be possible to all a 64bit process from within VFP?

The thing I use for almost 20 years now is pkzip25.exe, and for the last 15 years, more or less, api_apprun (from downloads here, courtesy of late Ed Rauh) to shell out invisibly. It didn't even notice that it's 64 bits outside, and cloudy.