CrackTcpip.sys is a driver based patcher for Windows Vista tcpip.sys to increase the limit the concurrent half-open TCP/IP connection attempt the operating system can make. CrackTcpip.sys does not modify original tcpip.sys in any way. It’s a memory-resident driver program that constantly monitor a memory location that stores the value of the limit, and change the default value to a higher number (255) on the fly.







