Summary

The VPN technologies provided with all supported Windows client operating systems—including Windows 2000, Windows XP, and Windows Server 2003—support the IETF standards for IPSec, L2TP, and PPTP. Microsoft is committed to interoperability with third-party VPN products that also support these standards. Broad support for interoperable VPN standards results in lower costs and better long-term value for your remote access and site-to-site VPN solutions.