Since windows does not support pipe method.
You can use Pop method to fetch emails to your parser.
Admin >> Mail Parser >> Add new Email queue
There you can choose Pop3 method for fetching emails.
Once this is set you need to set cron or scheduler to fetch emails from pop every 5 minutes.
Click below link for help on setting cron --
http://thevisionworld.com/help/index.php?title=POP3/IMAP/POP3_SSL/IMAP_SSL_Email_Fetching.
If you still have issues open support ticket - we will get it fixed for you.