Good news! No .NET updates.
In this update, there are 13 security bulletins fixing a total of 19 different vulnerabilities affecting various Microsoft products.
The majority of security patches have been released for Microsoft’s Windows operating system and Microsoft Office, with a cumulative security update released for Internet Explorer as well.
For a discussion of each individual update, visit: http://www.ghacks.net/2011/12/14/microsoft-releases-security-patches-for-december-2011/?_m=3n%2e0038%2e368%2ehj0ao01hy5%2edez
You can download the individual updates after deciding which you want (just get all the “Critical” ones!) by visiting http://www.microsoft.com/download/en/default.aspx
My updates required a restart.