There is always some or the other development happening on the competeive marketing front
I am sure all the security companies are working towards making it a Win-win situation for the company itself and its subscribers.
Microsoft Security Essentials is certainly a free product and was touted a lot when it was being launched. However, just to give you an indication as to how good it is at protecting your servers/computers , I suggest we should take a look a the latest comparatives by Virus Bulletin. The Microsoft Security Essentials failed the test among many others.
Both the tested products from McAfee have won it !!!