Windows 2000 SMTP Malformed Data Transfer Vulnerability Patch

From Microsoft: Microsoft has released a patch for Windows 2000 that will eliminate a vulnerability that exists because a malicious user could issue a specially formatted, non-RFC compliant SMTP command that will result in a Denial of Service attack. This would be carried out more typically through a custom application where the malformed data would cause the SMTP service to fail. Download now to prevent a possible Denial of Service Attack.