RemoteFX Support
Menu path: Setup > Sessions > RDP > RDP Global > Performance > RemoteFX Support
With the Service Pack 1 for Windows Server 2008 R2, local system functions such as Windows Aero or 3D display can be made available in RDP sessions too.
In order to do this, the RemoteFX extension for RDP must be enabled. You can configure the relevant settings under RDP Global > Performance or in the corresponding session settings.
Globally enabling Remote FX is not recommended as conventional RDP sessions may also be affected by this. With RemoteFX, all graphics effects available under Performance are enabled. This may slow down the session as a result. It is better to enable the function only for individual sessions which establish a connection to appropriately equipped servers.
Further information on Remote FX and the server-related requirements is available from Microsoft at https://technet.microsoft.com/en-us/library/dd736539(ws.10).aspx.
In the IGEL Registry, you can configure the number of frames sent by the server without confirmation under the key rdp.winconnect.remotefx-ack. The default value is 1. A value of 2 or 3 can lead to improved performance in networks with high latency.