This update resolves the "Unchecked Buffer in PPTP Implementation Could Enable Denial of Service" security vulnerability in Windows 2000. Download now to prevent an attacker from disrupting service on a server that offers private networking and uses the PPTP protocol.

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

1. Click Start, point to Settings, and then click Control Panel.
2. Double-click Add/Remove Programs.
3. Select Windows 2000 Hotfix (Pre-SP4) [See Q329834 for more information].
4. Click Change/Remove to uninstall.