program hangs when external process crashes

[Earl Eiland]

I'm executing WinRK.exe in a loop using the following code:

for x in Files:
Command_String = 'C:\Program Files\WinRK\Win RK.exe -create ' +
os.path.join(In putDirectory, os.path.splitex t(x)[0]) + ' -set
compression_met hod ppmz -setg include_paths none -add ' +
os.path.join(In putDirectory, x) + ' -apply -quit'
PROC = subprocess.Pope n(Command_Strin g)
PROC.wait()

Occasionally, WinRK crashes, and this program hangs at PROC.wait().
What can I do about this?

Earl Eiland