Whois Windows Tool

I was trying to learn a bit of Sockets programming with C# and as a test tool, I have made a small opensource product called 'Whois Helper'. Check out the screenshot of the same below:

You can also grab a source of the same from Codeplex here. The tool has the following features in its first version:

• Built-in static database (embedded resource) of Whois servers for all TLDs in the world.
• An option for the user to override the built-in server and query the custom server.
• Optionally copy the output (automatically) to clipboard.

Feel free to send me your comments, suggestions and criticisms on the same.