http://www.evanvaughan.com/magicjack.aspx
Source: https://github.com/throop02/MagicJackSvcCreator
This tool is designed to remove the MagicJack UI from the desktop and run your MagicJack behind the scenes as a Windows service. It is totally automated and only takes a few seconds to run. It has been tested with Windows XP, Vista, and 7 (including 64 bit versions of Windows). Benefits include:
- No more UI popups or desktop phone call notifications
- MagicJack is functional even when user is logged off, and works under all user accounts
- No splash screen or waiting for MagicJack to load
- MJ has higher system resource priority when run as a service
- Stand-alone app (does not install itself on your PC or run continuously in the background)
- Revert back to OEM setup with one click
- Free, open source application

"Just wanted to say thanks for writing that. Saved me alot of trouble. I had tried MagicBlockv1.2, but calls still made me lose focus on my current window (running XPsp3). That's no good when you are in the middle of a full screen game, it gets minimized. It would be nice to still have the softphone running, but for me it's a small price to pay to not have to load another user at every reboot. Again, thanks!!!" - Rock
"excellent work, many will be pleased." - Bill
To use, simply unzip the files to a folder and run the executable.
