>>>No, try running it from within VFP, but from a Windows command prompt. Enter >>RUN COMMAND or RUN CMD from the VFP command window to get to DOS. Now see if >>your program runs by simply typing it's name
>
>Tried that, the file extracts itself just fine. The idea to do it from a batch file, might work, but the batch file would have to be dynamicly written every cycle, but it is an idea worth considering.

Then there is no reason that the file won't run from with in VFP. There must be something else about how you're formatting the command.