PC2HDNET and PC2VGANET supported OS
Firmware version is 2.055 supports Windows 8.
Firmware version other than 2.055 supports XP, Vista, Windows 7.

USBServer supported OS
Beta version supports windows 8.
WHQL version supports XP, Vista, Windows 7.

DisplayLink supported OS
All versions support XP, Vista, Windows 7 & 8.