I am renting two 32 player GRAW2 servers with FPS hosting.net, a TDM server and a Co-Op server, they reciently moved us to a new box with solid state drives and gigabyte net access running Server 2008, and the UAC features in 2008 prevented the Co-Op server from running. They had to downgrade the box to server 2003 and disable UAC to get it to run. In server 2008 even disabeling UAC would not allow GRAW2 to run.