Today marks the release of Microsoft's free anti-virus named Microsoft Security Essentials (MSE). 75k people will be given the software thru a beta program although this number is likely to extend the cap of 75,000 downloads depending on demand.

MSE is Microsoft's free anti-virus and anti-spyware product that is set to replace Microsoft's paid Windows Live OneCare subscription service which is being withdrawn a week today. Earlier this month Neowin exclusively revealed MSE (codenamed Morro) and we believe that the final product will be available shortly before the Windows 7 launch in October. MSE is being distributed on Microsoft's Connect site as a beta program.