12/19/2023 0 Comments Remote assistant port![]() To send an invitation, the Novice clicks Start, All Programs, Remote Assistance. Novices can send Experts an invitation in three ways: using Windows Messenger, sending an email attachment, or transferring a file. Once the Expert receives and accepts the invitation, she can view the desktop of the Novice’s computer, chat with him, and-provided the Novice gives permission-take control of the Novice’s computer and fix things. The first type of Remote Assistance is where the Novice requests help from the Expert. ![]() ![]() Let’s briefly review the first type of Remote Assistance (invitations) and then go on and look how to implement the second type (Remote Assistance offers) in an enterprise where Group Policy is used to manage desktop configuration settings. What’s not so well known however is that Help Desks can use Remote Assistance in two ways: users can request help when they need it, and experts can offer help when they feel users might benefit from it. Reducing support costs for Help Desks however is another thing, and that’s really where Remote Assistance shines. All this-hardware difficulties and firewall complexity-make Remote Assistance a difficult feature for many home users to make use of, and I personally don’t know anyone who has used it at home to get help for their computer problems. For Windows Firewall, this means opening up port 3389 for inbound connections only as no outbound filtering is performed, but this will soon change in Vista where the firewall will filter both outbound and inbound traffic. Finally, there are firewall issues associated with Remote Assistance and the bottom line here is that generally both the Expert and Novice computers must have their firewalls configured to allow both inbound and outbound traffic on port 3389. And even if only one of them is behind a NAT-enabled router, Remote Assistance usually won’t work unless the router is Universal Plug and Play (UPnP) compliant so that incoming packets directed to port 3389 can be mapped to the client needing assistance. In particular, if both the Novice (the user/computer needing assistance) and the Expert (the user/computer providing assistance) are both hidden behind NATs, then traditional invitation-based Remote Assistance just doesn’t work. With the advent of home networks having broadband connections to the Internet and protected behind NAT-enabled routers, the plain fact of the matter is that Remote Assistance doesn’t always work. The reasons for this are mainly related to networking hardware. Unfortunately the second use hasn’t turned out to be as helpful as it was originally intended. It first appeared in Windows XP and was promoted by Microsoft in two ways: as a way for Help Desk departments to save on the cost of supporting users, and as a tool for home users to receive help from “experts” over the Internet. Remote Assistance is one of those features that hasn’t quite lived up to its initial promise. ![]() Topics covered include using Group Policy to create a Remote Assistance exception for desktop computers, configuring computers to receive offers of Remote Assistance, and tips on using Remote Assistance.
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