This update resolves the "NetBIOS Name Server Protocol Spoofing" security vulnerability in some Windows-based networks and is discussed in Microsoft Security Bulletin MS00-047. Download now to help prevent a malicious user from misusing the Name Conflict and Name Release mechanisms that are part of Windows Internet Name Service (WINS). If a malicious user exploits this vulnerability, Windows 2000-based computers cannot register a name on the network, or can lose their current name registration, making the computers unavailable as network resources.

For more information about this vulnerability, read Microsoft Security Bulletin MS00-047. (This site may be in English.)

• Windows 2000 Professional
• Windows 2000 Server
• Windows 2000 Advanced Server

1. Click Start, point to Settings, and then click Control Panel.
2. Double-click Add/Remove Programs.
3. Select Windows 2000 Hotfix (Pre-Sp2) [See Q269239 for more information], and then click Change/Remove to uninstall.