Recommend FastProxySwitch 3.2.1

FastProxySwitch is a compact application which resides in your system tray and enables you to change active proxy settings on the go in just a couple of mouse clicks. The program automatically reads your proxy settings for all existing connections the first time you start it. Not only does FastProxySwitch facilitate you networking tasks, it also protects your anonymity by purging IE history, deleted temporary Internet files, cookies and cache.