Doubtful for our organization. We use Symantec Endpoint Protection And Symantec Antivirus depending on the version of the OS.
It’s not an enterprise ready tool like their Forefront security suite is. I would only use it as a backup to our primary AV (McAfee). I already use the Microsoft Malicious Software Removal Tool (MRT) in this fashion. It has come in useful in removing some previously undetected infections.
benchmark anti-virus product august 2009 last comparative for the good detection/protection was
1st place go to G Data
2nd place to Avira and they give free protection for a basic protection.
3rd place is McAfee
then the 4th place is symantec — Norton
Microsoft is Number 14 on good detection/protection :)).
By the way I’m using antivirus Avira, antimalware I use SuperAntiSpyware for free and I protect my rootkit with threatFire also for free ;).