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Asked: 2026-05-10T17:03:05+00:00

I’m using HttpListener to allow a user to set up a proxy on a

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I’m using HttpListener to allow a user to set up a proxy on a user-defined port. When I start the HttpListener, I get an exception if the application isn’t running under administrator privileges in Vista.

From what I’ve read, this is expected behavior – administrator privileges are required to start listening on a port. But I’m sure there are ways around this, as I run plenty of programs (like Skype) which listen on a port without requiring elevation to administrator.

Is there a way to do this with HttpListener? If not, can I make other API calls in .NET code to set up the port?

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  1. I’ve never used an HttpListener, but from your description it sounds more like you want to listen on a regular TCP port, instead of embedding your application into a server URL namespace (which is what HttpListener appears to do). You should be able to use regular socket functions (System.Net.Sockets.TcpListener) to open and listen on a TCP port without requiring administrator privileges. I’m almost certain Skype doesn’t use an HttpListener.

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