Oh deep joy...
note the "extensive" list of Windows versions that are affected.
* Microsoft Windows NT Server 4.0 SP6a
* Microsoft Windows NT Server 4.0 Terminal Server Edition SP6
* Microsoft Windows NT Workstation 4.0 SP6a
* Microsoft Windows 2000 Advanced Server
* Microsoft Windows 2000 Professional
* Microsoft Windows 2000 Server
* Microsoft Windows Server 2003, 64-Bit Datacenter Edition
* Microsoft Windows Server 2003, 64-Bit Enterprise Edition
* Microsoft Windows Server 2003, Datacenter Edition
* Microsoft Windows Server 2003, Enterprise Edition
* Microsoft Windows Server 2003, Standard Edition
* Microsoft Windows Server 2003, Web Edition
* Microsoft Windows XP 64-Bit Edition
* Microsoft Windows XP 64-Bit Edition Version 2003
* Microsoft Windows XP Home Edition
* Microsoft Windows XP Media Center Edition
* Microsoft Windows XP Professional
* Microsoft Windows XP Tablet PC Edition
Given that NT4 is affected, I wouldn't be at all surprised to discover that 98 and ME are too (but I don't know htat for sure)
The link to the security bulleting is
here 