I bought Apple’s Magic Mouse and wireless keyboard a few days ago. Pairing these devices with a PC running Microsoft Windows 7 was causing no pain at all. However, general Microsoft Windows drivers didn’t map Apple’s keyboard perfectly and Magic Mouse was not scrolling at all (to any direction). I went and Googled about it with no luck. I just couldn’t find a reasonable solution to this problem. People were even proposing to run an external third party software to make keymapping happen correctly. It just didn’t feel right. And it wasn’t.
Here’s how you make Apple Wireless Keyboard & Magic Mouse work perfectly on Windows 7.
- Grasp your MacOS X installation DVD and look for files called “AppleKeyboardInstaller.exe” AND “AppleWirelessMouse.exe”
- Copy and run those files on your PC (or mac) running Windows 7
- Pair your devices. Voilá!
No actual Bootcamp needed. No third party software needed.
You may find those .exe files below but – dude – you seriously prefer to copy them from your own copy of MacOS X installation media instead of internet. 
