Hi Jill,

>"Change the FoxRun.PIF" file as in changing it's properties in explorer? in the program tab, i changed "Cmd line" to "cmd.exe" and it still doesn't work.

This might happen if the unzip program is also a DOS program. Which would also explain why it can't deal with blanks. Although, the latter happens with many Windows programs, as well.

It's probably better not to use RUN at all. Instead you could use the ShellExecute API function. There's a FFC class available for this.