What is iTunesPauser?
iTunesPauser is a simple application that when run will pause or resume iTunes. If iTunes isn't currently running, it will launch it. That's all.
The latest Microsoft IntelliType Pro keyboard drivers -- which infuriatingly don't support the Microsoft Office Keyboard fully -- have a media "Play / Pause" option which only seems to work with Windows Media Player. By altering the command to execute iTunesPauser, you can use the button to control iTunes.
Where can I get it?
You'll need the Microsoft .NET Framework Version 2.0 installed.
How do I make it work?
Unzip the downloaded file and put the two extracted files together somewhere. Run iTunesPauser.exe.