It was the first version that was allowed to be installed along with Windows Messenger on Windows XP.Version 6.0 of MSN Messenger was released July 17, 2003.It included file transfers and PC-to-PC and PC-to-phone audio capabilities with Net2Phone and Callserve, Along with the release of Windows XP came version 4.6 of MSN Messenger, on October 23, 2001.
During that time, Microsoft released seven major versions as follows.
When it was first released, it featured support for access to America Online's AIM network.
America Online continually tried to block Microsoft from having access to their service until eventually the feature was removed, and it has not re-surfaced in any later versions of the software.
The last version of MSN Messenger before the name change, version 7.5, was released August 23, 2005.
New features included the Dynamic Backgrounds feature and the "msnim" protocol handler, which allowed Web sites to provide links which automatically add a contact or start conversations.