Possibly not, but certainly it can using Terminal Server and Citrix Metaframe.
I can have a potential customer load up a Citrix client, open a temporary hole in the firewall, and have him log on to a Terminal Server here. He then sees an NT screen. While on the phone to him, I can shadow the session and run the keyboard and mouse for him or let him do it. The good part is that all of the real software stays on my computer, and I know it is running on compatible and fast hardware.
Clearly this is a solution where you are selling expensive software and/or services, but it does work, and it is very clean. We also use it for training our people at remote sites.
Keep smiling.