You might want os.spawnv(os.P_WAIT, "a.exe", ["a.exe"]) os.system("a.exe") Jeff -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 196 bytes Desc: not available URL: <http://mail.python.org/pipermail/python-list/attachments/20050531/9c20fad0/attachment.sig>