SCENARIO
Is there a way to find out what proxy I am using if Internet Options are disabled by Group Policy?
SOLUTIONS
There are couple of ways to find out what proxy server you're using. Here's how to find out the proxy server address using Command Prompt.
In the command prompt window type the following:
reg query "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings" | find /i "proxyserver"
Or you can use the tools like Ethereal or Wireshark to sniff for the [gs network] traffic and this way found out the address of the proxy [gs server], although this could be a problem if you don't have appropriate permissions to install third party software.
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How to find out which Proxy Server I am using (Windows Vista/7) http://heelpbook.altervista.org/2012/how-to-find-out-which-proxy-server-i-am-using-windows-vista7/ via @HeelpBook