Hi Whosen, This is essentially an issue with differences between RDP7 and RDP8.Although you mention there have been no changes, is it possible that this is working with RDP7 instances, but failing on newer RDP8 Instances? this would also be related to Server 2012 for instance. This is covered in the following Tech Support article:[View:support.software.dell.com/.../105537:550:0]  I hope this is of some help? Cheers,Dave Caddick
Hi,  I have some issue unable to do remote asistance to computer using vWorkspace Management console. I will get error " The following error occured while shadowing session 2 on server xx.xx.xx.xx, This function is not supported in this system (120). There is no recent changes done in broker server and i'm able to do remote assistance to user desktop without any issue previously. Anyone can help me?   Thank You.    
Unable To Remote Assistance User Virtual Desktop