Remove Vista SP2 network connection half open limit

I believe that everyone has had such an experience. Under the normal ADSL broadband, when you open the download tool to download resources, it will be very difficult to browse the webpage. Windows7 is not spared.
The reason is that some download software will take up all the bandwidth in order to pursue speed when downloading. On the other hand, Microsoft also limits the number of TCP/IP half-open connections in the system for security reasons.
The method of removing restrictions is also very simple:
* WIN+R runs regedit
* Found
HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControl\\SetServicesTcpipParameters
* Find the EnableConnectionRateLimiting key in the right panel < Br> At this point, there are three totals:
1. No such key: Congratulations, your system does not have a TCP/IP connection limit
2. The key value is 0: Congratulations, you The system also has no TCP/IP connection limit
3. The key value is 1: The TCP/IP limit is activated, the default is 11.
The removal method is of course very simple:
* Double click to modify it Value is “0”
* Click OK to exit
PS: This method also applies to Vista SP2
This way, the bandwidth situation should be improved, but the root cause is still to limit the download speed To solve.