download msn messenger

Windows Live Essentials 2011 requires the following:

Get Messenger and stay close

Chat—or video chat—with friends and family. It's fast and it's free

download msn messenger here 

• Operating system: 32- or 64-bit version of Windows 7, or Windows Vista with Service Pack 2 and the Platform Update for Windows Vista, or Windows Server 2008 R2, or Windows Server 2008 with Service Pack 2 and the Platform Update for Windows Server 2008.
• Processor: 1.6 GHz or higher
• Memory: 1 GB of RAM or higher
• Resolution: 1024 × 576 minimum
• Internet connection: Online services require dial-up or high-speed Internet access (provided separately—local or long-distance charges may apply). High-speed Internet access is recommended for some features.
• Graphics card: Windows Live Movie Maker requires a graphics card that supports DirectX 9 or higher and Shader Model 2 or higher.
   source official website