Remote Assistance

[Barry Watzman]

Windows XP has a "remote assistance" feature under Help and Support,
"Invite a friend to connect to your computer with remote assistance".

My attempts to get this to work have been spotty; I'm suspecting that
it's not working in some instances because the person whose computer is
to be controlled is behind a router, and a port needs to be opened that
is being blocked by default.

Is this correct, and what port(s) have to be open to use this feature?

 

[Doug Knox MS-MVP]

Remote assistance uses port 3389 for TCP/IP, if I recall correctly.

Also, if the person requesting the help is behind a router, and is
submitting the request via e-mail, the IP address in the e-mail message will
be wrong. It will be their LAN IP (behind the router) not the IP address of
the router itself.