Firecore team has just released Seas0nPass jailbreak for Windows that lets you jailbreak your AppleTV2 on iOS 4.3. Currently, the jailbreak is tethered and you need to go through the ‘tethered boot’ process.
Those who don’t know, Seas0nPass is like a PwnageTool (for Mac)and Sn0wbreeze (for Windows) that allows you to create custom AppleTV IPSW files and restore them in iTunes. The process for jailbreaking Apple TV 2G will remain same as on Mac.
Download Seas0nPass Tool for Windows
We will soon be publishing Windows-specific guide.