[thestorm_jpeg]

In the most recent builds of Windows 10, there is a new Windows Phone app what enables you to link your iOS device. Not sure if that's exactly what you are looking for but you can use iMessage on your Windows Desktop. Good luck!

[enzanki_ars]

The Windows Phone app only works well with Android devices. Messaging sync with iOS is not supported yet according to their website, and I doubt the Windows can ever get the iOS API access needed to make it work.