If you use different MSN accounts for different purposes, like one account to keep in touch with your friends and family and the another one to keep track of your office details, then you’ll definitely need MSN polugamy messenger.
If you have the default MSN messenger set up, then you will not be able to login to two different accounts at the same time from the same computer.
Here’s how you can login to multiple MSN messengers from the same computer at the same time :
Download and install Multiple MSN Messenger Hack from MSN Messenger Polygamy. They have support for most versions of MSN, which includes version 7.x, 8.x, 9.x and 14.x ( Windows Live Messenger).
Double click on the exe to run the program and you’ll be propmted to click the patch button. That’s it you are done. After you have installed MSN Polygamy on your system you can run more than one copy of MSN Messenger simultaneously on your system!