Linked below is a Hardening stack TCP/IP tool for Windows. It is designed for all versions of Windows XP, and all version of Windows 2000. The tool supplies a simple GUI for Hardening Stack Tcp/ip os Windows againg many Dos attack. The program is: http://www.securitywireless.info/download/hardtcp.exe source: http://www.securitywireless.info/download/sourceHard.txt Best D'Amato Luigi Admin Security Wireless http://www.securitywireless.info