Microsoft has released Beta version of its FREE Antivirus and antispyware program "Microsoft Security Essentials" (MSE) 2.0.

The build number is 2.0.0375.0 and is available in both 32-bit and 64-bit versions.

New features in this beta version:

Windows Firewall integration – During setup, Microsoft Security Essentials will now ask if you would like to turn the Windows Firewall on or off.

Enhanced protection for web-based threats – Microsoft Security Essentials now integrates with Internet Explorer to provide protection against web-based threats.

New protection engine – The updated anti-malware engine offers enhanced detection and cleanup capabilities with better performance.

Network inspection system – Protection against network-based exploits is now built in to Microsoft Security Essentials.