Thanks, Michel. I checked out the issues around using the function, but I know the VFP Team invented it with something in mind... I'm just wondering what "something" was. I have done a few varities of apps with "VFP inside" and have not used that Sys function. I'm just hoping to get inspired by some real-world examples or ideas. I am guessing that it might be useful if you had a MTDLL that needed to poll the serial port; but then again if you are polling the serial port you might as well have a .exe that does it all the time, so that is not a good example....



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>This thread #634650 contains some issues in regards to SYS(2336).