Earlier this week Microsoft released the February 2011 security bulletins patching vulnerabilities in Windows, Office, Internet Explorer, and IIS (Internet Information Services).

No less than 12 patch packages were offered on February 8th, 2011, and the Redmond company also made available the traditional Security Release ISO Image, providing an easier way for IT professionals that don’t use WSUS to deploy this month’s Windows security updates.

As per usual, the February 2011 Security Release ISO Image contains only the security bulletins that impact the Windows platforms and not Office or IIS. This is why, out of the 12 security bulletins designed to patch 22 vulnerabilities, the February 2011 Security Release ISO Image brings to the table only 11 bulletins patching 20 security flaws.