Microsoft Security Advisory (979682)
Vulnerability in Windows Kernel Could Allow Elevation of Privilege
Published: January 20, 2010 | Updated: January 22, 2010

V1.1 (January 22, 2010): Added links to Microsoft Knowledge Base Article 979682 in the Issue References table and Additional Suggestion Actions section. Added a link to Microsoft Knowledge Base Article 979682 to provide an automated Microsoft Fix it solution for the workaround, Disable the NTVDM subsystem.
http://www.microsoft.com/technet/security/advisory/979682.mspx

Fix It solution is in http://support.microsoft.com/kb/979682