Update of TCPIP.SYS
Microsoft released a new TCPIP.SYS with build 5.1.2600.2892 on the yesterday's patch-day. The current Patcher 2.23d is still capable of changing the half-open tcp limit. But you need to reapply the patcher to set a higher limit to the new version.
If you have a slow connection on your p2p connection , there's one way that you can do to increase the your download. It's not easy to adjust the setting of TCP/IP but Microsoft have came out with a patch for this problem. You can find out more about this patch at