How to: Configure Team Foundation Build to Use Team Foundation Server Proxy
Team Foundation Server Proxy servers provide enhanced performance for distributed systems by caching copies of version control files in the distributed locations. You can configure Team Foundation Build to retrieve the files that you want to build from Team Foundation Server Proxy by modifying the proxy-specific registry entry on the build server. For more information about how to set up a proxy server, see "How to: Install Team Foundation Server Proxy" in the Team Foundation Installation Guide for Team Foundation Server, which you can find on the Microsoft Web site.
Improperly modifying your computer's registry can cause your computer to become unstable. If you are not familiar with the registry, you should not add or remove entries, or modify it in any way.
To complete these procedures, you must be a Windows Administrator on the Team Foundation Build server.
To modify the proxy registry entry on the Team Foundation Build server
On the Team Foundation Build server, click Start, click Run, type regedit, and then click OK.
In the browser pane, expand HKEY_CURRENT USER to HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\9.0\TeamFoundation\SourceControl\Proxy.
In the right-hand pane for Proxy, set Enabled to True, and then set URL to http://proxyserver:8081.
Where proxyserver is the name of the proxy server.
On the File menu, click Exit to close Registry Editor.
Team Foundation Build will now use the Team Foundation Proxy server.