Hi, Is the a known issue with the os.execxxx function on win32? Because, I can't get them to work. This is my test. 1) Create a batch file called test.bat containing the single line: echo hello 2) Running this from the command line works fine 3) Open python win and type >>> import os >>> os.execv(r"d:\test.bat",["foo"]) This kills the pythonwin process Rich