Brynhildr is for faster machines, has encryption and voice/sound. The developer has created a custom video codec (useable with AHK?). The developer is also currently working on a desktop recorder (a la Fraps).
Brynhildr (Brünnhilde) is a remote desktop software that allows remote operation of a personal computer. Is Free Software that can be available at no charge, regardless of who profit even in a non-profit private corporation. Screen data transfer, voice transmission, encrypted communication, transfer the clipboard (text), file transfer, etc. It supports multiple monitors. Easy installation that is not required to work is possible.
"TrueRemote" is a free remote desktop software for ultra-fast. This data can be transferred to another computer screen, remote control and file transfer, clipboard sharing is possible. It also supports multi-monitor and multi-codec. OS platforms supported are Windows.