To me it sounds awfully lot like treating the symptoms instead of the cause which would have been to tighten up Windows security to prevent virus infections in the first place. Applications like security network scanners, peer-to-peer (P2P) applications or a combination of network applications that a power user may be using (VPN, FTP, p2p, RDP, SSH, “ Firefox on steroids” and more). The drawback with this connection limit is that other legitimate network intensive applications can be slowed down as well. This is supposed to slow down certain viruses because their spreading strategy is to try to connect to a high amount of random IP numbers. Windows XP SP2 limits half-open connections (SYN) to a maximum of 10 (the previous limit was over 65,000). Hang on, how is crippling of the TCP/IP stack a security enhancement? It introduced an array of security “enhancements”: dual direction firewall, several long overdue IE improvements, memory protection and the crippling of the TCP/IP stack. If you are using Windows XP, you must have noticed all the fuss about Service Pack 2. Torrentfreak has a great write up on how to patch Windows Vista (32/64-bit) to increase the TCP connections and improve your BitTorrent (p2p) experience. In fact Vista Home Basic is even more limited with only 2 connections allowed! It looks as if Windows Vista comes with similar half-open outbound connections limit as Windows XP SP2 did.

Bitcomet speed hack patch