Article ID: 2653326 - View products that this article applies to.
On a system where RemoteFX USB redirection is enabled, devices of the following types may not be listed in Remote Desktop Connection under the "Other Supported RemoteFX USB devices" category:
By default, devices in the aforementioned categories are accessible in the remote session by using high-level device redirection methods. These methods of redirection enable optimal performance and backward compatibility of the device in the majority of user scenarios. Consequently, these devices are not offered via RemoteFX USB redirection.
An override mechanism is provided to selectively enable the use of specific device types in the aforementioned categories via RemoteFX USB redirection. Device types enabled by this mechanism will be made available for RemoteFX USB redirection, and will appear in Remote Desktop Connection under the "Other Supported RemoteFX USB devices" category. In order to use the device via RemoteFX USB redirection, it still must be selected for remoting by using the Remote Desktop Connection UI, usbdevicestoredirect:s: RDP file string, or other methods.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756To enable a device type for RemoteFX USB redirection:
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
For step-by-step instructions on configuring an evaluation deployment of RemoteFX USB redirection for Windows 7 SP1, please visit the following Microsoft Technet web site: http://technet.microsoft.com/en-us/library/ff817581(WS.10).aspx
For more information about RemoteFX USB redirection, please review the Introducing Microsoft RemoteFX USB Redirection article series on the Remote Desktop Services blog: http://blogs.msdn.com/b/rds/archive/2010/11/08/introducing-microsoft-remotefx-usb-redirection-part-3.aspx
(http://go.microsoft.com/fwlink/?LinkId=151500)for other considerations.