In this way to improve speed, which is what this principle?

Run “regedit”, in order to open the “Registry Manager”; and then, following the path to find HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ Tcpip \ Parameters.

Right-click “Parameters” sub-keys corresponding to the right side of the blank , Select “New” ? “DWORD value”, named “DefaultTTL”, then right-click the mouse to choose “modified” in the pop-up window to change its value is “80” (hexadecimal) or 128 (metric).

Followed by another the following new “DWORD value” and modify its value (if the two values, hex for the former, the latter as a decimal):
“EnablePMTUBHDetect” = “0”
“EnablePMTUDiscovery” = “1”
“GlobalMaxTcpWindowSize” = “7FFF” or “32767”
“TcpMaxDupAcks” = “2”
“SackOpts” = “1”
“Tcp1323Opts” = “1”
“TcpWindowSize” = “7FFF” or “32767” (93,440 or 186,880 or 372,300, depending on network conditions)

I do not quite understand ……slow speed fast.'s up to you instead of Windows XP on a broadband connection speed limit, which is often said that the number of concurrent connections.

The registry file is set to the largest number of connections, or 32,767, and XP's default is 10.

This means that by default, your system for the network connection, and up to the Internet can be established 10 link, sufficient bandwidth, of course, is to connect a few more to use more network resources.I suggest that you consult a professional