Greetings John,
I'm not quite sure what you mean as there is no product called "Microsoft Messenger" -- there
is however, a Windows Messenger (which comes with Windows XP) and a MSN Messenger (which more
than likely is what you were using previously).
There are several differences between the two. Most notably, MSN Messenger 6 has support for
display pictures, custom emoticons, has a different interface, etc. whereas Windows Messenger
supports SIP-based communications services, Exchange IM Server, etc. Which one you use is up
to you, and a matter of personal choice (and based upon your needs and likes), however one
thing to keep in mind, Windows Messenger must still be installed on
Windows XP in order for MSN Messenger to retain full functionality (Remote Assistance,
Whiteboard, Application Sharing, etc.).
MSN Messenger is centered around MSN technologies (Hotmail, MSN Member Profiles, MSN Mobile,
etc.) whereas Windows Messenger is centered around Windows technologies (Exchange Server,
Office Live Communications Server, Windows Netmeeting, etc.).
Both clients however can make use of Microsoft technologies, like the .NET Messenger service,
..NET Passport and .NET Alerts.
____________________________________________
Jonathan Kay
Microsoft MVP - Windows Messenger/MSN Messenger
Associate Expert
http://www.microsoft.com/windowsxp/expertzone/
Messenger Resources -
http://messenger.jonathankay.com
All posts unless otherwise specified are (c) 2004 Jonathan Kay.
You *must* contact me for redistribution rights.