Windows 7: Create reg file to change between connecting with proxy server?

How can I create I .reg file or command line to change between connecting with a proxy server (address: proxy or 10.22.12.12, port: 8080) and directly?

-updated-

I use chrome portable for my proxy connections with this command:
GoogleChromePortable.exe --proxy-server=socks="localhost:1080"

This opens a Chrome browser and opens the socks internet proxy for the current session and any tabs opened in that session. Once the browser is closed it is rest to normal.

netsh winhttp command also might be what you're looking for too. This will run the proxy until its reset.

http://technet.microsoft.com/en-us/l...0).aspx#BKMK_5

Create Proxy connection:
netsh winhttp set proxy 10.22.12.12:8080

Reset poxy connection:
netsh winhttp reset proxy

proxy for browsing? which browser?
Or alos proxy for ftp clients, mail etc?

Proxy for Internet Explorer (Chrome also).