This software is freeware.

This application allows you to use multiple copies of MSN Messenger at the same time

MSN Messenger (WLM) Polygamy 2009 will allow you to use multiple copies of MSN Messenger at the same time. Supports all versions of MSN Messenger including versions 7.x, 8.x, 9.x and 14.x ( Windows Live Messenger).

It is easy to use,Double-click MSN_Polygamy.exe to run the program, and then click the Patch button , then your MSN Messenger can run more than one copy simultaneously.