Windows Live Messenger Features:
• Sharing folders
The Sharing Folder feature of Windows Live Messenger is an alternative to the "direct transfer" method of file distribution. When a user wants to deliver a file to another person on his or her contact list, the "sharing folder" window appears, which is an individualized representation of all previously shared items.

• PC-to-phone calls
In addition to PC-to-PC calls that have been supported in previous versions, Windows Live Messenger now supports PC-to-phone calls with Windows Live Call. In the US, this feature is supported by Verizon, branded as "Verizon Web Calling". Orange France also has a similar service. This feature is only available in selected countries, including the US, the UK, France, Germany, the Netherlands, Austria, Ireland, Finland, Belgium, Spain, and Italy.

• Windows Live Messenger to Yahoo!
This allows Yahoo! and Windows Live Messenger users to chat (using text or voice) to each other without the need to create an account on the other service, provided both contacts use the latest versions of the clients. However, if a user uses an older or third-party client, they will appear offline to the users on the other network.

• Offline messaging
Unlike previous versions, one can start conversations even when his or her status is set to Appear Offline, similar to behaviour in Yahoo! Messenger. If talking to someone who has an older MSN Messenger client, they will lose the ability to talk to you after a short period of no activity, due to their client thinking you are offline. As Windows Live Messenger has now been made available on several phones, a new trend has appeared where people send messages over Windows Live Messenger to each other as a way to have free SMS text messages.

• Games and applications
There are various games and applications available in Windows Live Messenger that can be accessed via the conversation window by clicking the games icon and challenging your "buddy".

• i’m initiative
The i’m initiative is a new program Microsoft launched in March 2007, that connects the user with nine organizations dedicated to social causes through Windows Live Messenger. Every time someone has a conversation using i’m, Microsoft Corp. shares a portion of the program's advertising revenue with the organization of the user's choice. There is no set cap on the amount donated to each organization. The more i’m conversations the user has; the more money goes to one of the nine causes. Each participating organization is guaranteed a minimum donation of $100,000 during the first year of the program. There is currently no end date for the program. The i’m initiative only works with the most recent WLM version 8.1 and 8.5 beta. The i’m initiative is currently only available to those in the United States.

• Xbox 360
Windows Live Messenger support was included in the Xbox 360 Spring 2007 dashboard update released on May 9, 2007. Unofficially, it is known as Windows Live Messenger 360.
Those using Windows Live Messenger are able to see the Gamertags of friends logged into Xbox Live, including the game they are playing. Xbox 360 users can chat in-game (or while watching a movie). Although only text chat is supported, Microsoft has suggested that voice and video chatting may come in a future update.

Supported Operating Systems: Windows Vista; Windows XP SP2

Changes and additions in Windows Live Messenger 8.5 :
* This version now requires Windows XP SP2, compared to previous versions requiring Windows XP SP1.
* In conjunction with the release of Windows Live 2.0, a new setup program was introduced.
* It is now installed to a 'Windows Live' folder in the drive where Windows is installed, and the shortcuts are placed in a 'Windows Live' folder in the Start Menu.
* All Messenger windows have a new look.
* A new 'bunny' emoticon has been added.
* Windows Live OneCare Family Safety integration was added.
* Updates can now be downloaded and installed through Microsoft Update, but only if you installed the update to version 8.5 Beta, released on June 21, 2007.
* Microsoft has blocked the sending and receiving of all .info links in conversations.

Microsoft is expected to officially open the beta program for Windows Live Messenger 9.0. Windows Live Messenger 9.0 is the next generation of Windows Live Messenger, this release is a "major" release and as such there will be no further interim builds for Windows Live Messenger.

The beta program for Windows Live Messenger is by invitation only and those invitations were sent out last week on Tuesday -Wednesday (the 21st, and 22nd respectively). Currently the program has been limited to 5,000 testers and will later be expanded to a larger group.

Homepage - http://messenger.msn.com

Download Windows Live Messenger 9.0 Beta link 1
Download Windows Live Messenger 8.5 Final link 2