It's not a patch, you can just change a registry setting if you don't like it.
quote:
TCP/IP and NBT configuration parameters for Windows XP
http://support.microsoft.com/default.aspx?scid=kb;en-us;314053
TcpNumConnections
Key: Tcpip\Parameters
Value Type: REG_DWORD - Number
Valid Range: 0 - 0xfffffe
Default: 0xfffffe
Description: This parameter limits the maximum number of connections that
TCP can have open at the same time.