For any number of reasons you may want to create a profile on your desktop for browsing the internet using proxies.   There are any number of reasons you may want to do this and the process is a fairly simple one following the process in the below video.

You can literally set one up in under 5 minutes and you can actually have any number of them on your desktop and opened at the same time using different proxies and one would not interfere with the others.

The video is courtesy of the owner of Domain Ally, Darko, a good friend of mine who put this together as a favor for a few guys that have a need.