While driving in to work this morning, I enjoyed another edition of the "Security Now" podcast. Leo and Steve covered the a new hot topic, the Windows WMF exploit that effects the Windows platform.
Steve mentioned that you could download some software to fix this vulnerability [See Links Below]. This software works for Windows 2000, XP, 64-bit XP and 2003 server.
All of Steve's notes covering this exploit are located on his web site which are updated regularly. You can also listen to this podcast which covers the exploit.