AirPrint is currently Mac only and works exclusively with a few HP printers. For Mac users without one of those fancy AirPrint-compatibile printers there’s a fantastic Mac application called Printopia but what about Windows? For Windows husers who want AirPrint to work with their computer there is a new tool called ‘AirPrint Activator.’
Just download the one-click tool, install and activate AirPrint for Windows 32bit or 64bit. Then you have to have the printer in System Preferences (printer properties) to share. Already, all printer under Windows 32-bit or Windows 64-bit for IOS 4.2.1 and AirPrint available. Please note Step 3: AirPrint.exe must be enabled in Windows Firewall.
Oh, and you want to download it? Here. Let us know in the comments how it goes for you.