IIS is the web/ftp server that's part of windows nt/2000/xp. If you don't need it you should disable it so someone doesn't hack you and run worms off your machine.

An SMTP server allows you to send, receive, and forward email messages between users. Learn how to configure SMTP server in ...

<B>Summary</B>:<BR><I>os.system(...)</I> with a given comamnd line launches properly from a web app running under IIS - there are no filesystem permission errors from IIS.<BR><BR><I>subprocess.popen(.