rootninja

If you have proxy settings set up in Internet Explorer already, then you can just run proxycfg -u and you’re done. It will add the registry keys for you. In the run dialog (Start -> Run) enter this command. It will flash the command prompt black screen and exit before you can see what it did, and that is fine because it requires no additional input. Or you can bring up a command prompt and run it so you can see the output if you’re curious.

proxycfg -u

If you don’t have them set up in Internet Explorer, you can specify which proxy server and port to use with proxycfg:

proxycfg -p rootninja.proxy.org:8002

This will create a new key in the registry named “Connections” under this key:

HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/Internet Settings/

It will have a default string value (REG_SZ) and a binary value (REG_BINARY) named “WinHttpSettings” that contain your new system wide proxy settings.