Windows Live messenger is the Micosoft alternative for Yahoo messenger, Google talk and other instant messaging clients .
Similar to Skype, official website of Windows Live messenger provides only an online installer for Live messenger. So here you can download the full offline installer of Windows Live messenger 2009 for backup or future use .
The official online installer of Windows Live messenger 2009 contains all these crap Microsoft softwares bundled together.
And it is not possible for people without internet connection to download and install softwares from this bundle .
Features of Windows Live messenger:
You can chat between Live messenger and Yahoo messenger contacts .
Share photos and files between contacts .
Play Games .
Support for Avtars, photos and emotions .
Update: Download Windows Live Essentials 2011 full standalone installer.