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Offer Remote Assitance and Port 135

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gmail2

Programmer
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Jun 15, 2005
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IE
We've configured our group policy to allow users to offer remote assitance to other suers to make it easier for users rather than them having to submit e-mail request etc. But we've just recently discovered that port 135 needs to be open in order for the expert to be able to offer assistance to the novice. I can understand this (I think) seing that the first thing it does is open that remote assistance window saying Joe Bloggs wants to offer you support etc. so I presume it uses RPC to start this process remotely.

However, if a user requests support it via e-mail or via file port 135 doesn't need to be open even though that same dialog box appears - it just require 3389. Likewise, how come Remote Desktop doesn't require 135? Escentially what we want to do is leave the policy in place but be able to do it without port 135 if possible. But first I'd like to understand why it's required
 
Please - anybody got any ideas on this at all?
 
Question numer 6:

Q. Is Remote Assistance the same thing as Remote Desktop?
A. No, it isn't. Remote Assistance uses Remote Desktop technology to allow an expert to provide assistance to a novice user on a computer running Windows XP. Get more information about Remote Assistance.
 
I know what the difference is between the two - what I want to know is why is it that offering support requires port 135 to be open when remote desktop doens't and neither does any other form of remote assistance.
Escentially what we want to do is leave the policy in place but be able to do it without port 135 if possible. But first I'd like to understand why it's required
 
Anybody got any ideas at all on this? For the life of me I can't figure out why 135 is only required for offering assistance.
 
I know this is an old post but I never found a solution to this. Can anybody shed any light on why offering remote assitacne requires ports 135 to be open?

Please - anybody at all?
 
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