解決方法：如果您要做到這個功能，您必需將遠端的Windows 7安裝至2008 R2 SP1下的Hyper V，並且要啟動RemoteFX服務才做得到，否則只能尋求其他3rd party程式來達到需求。
Introducing Microsoft RemoteFX USB Redirection: Part 1
However, there are many devices which are not covered by these redirections, such as scanners, multifunction printers, webcams, and more. RemoteFX USB redirection acts as a catch-all mechanism that redirects these USB devices! Unlike high-level redirections such as drive redirection, RemoteFX USB redirection happens at the port protocol (USB request block or URB) level, and is similar to how one can redirect serial or parallel ports via RDP. This provides some unique advantages, as you’ll see below. However, RemoteFX USB redirection is meant to supplement high-level redirections, not to supplant them. By combining RemoteFX USB redirection with RDP high-level device redirections, you can have the best of both worlds. Here is a table that compares and contrasts the two forms of redirection.
Hardware Considerations for RemoteFX
Deploying Microsoft RemoteFX on a Remote Desktop Session Host Server Step-by-Step Guide
Appendix A: Devices that Support Redirection