I like the \"Add Connection\" or \"SQL Connection\" dialog that is in Visual Studio in Server Explorer window. I also like the one in CodeSmith. I would like to have that s
You would have to implement it yourself. It comes as part of the installtion of VS.NET, and if you were to access it, I am sure the EULA would require a license for VS.NET on every machine you ran this on.
That being said, you will have to implement this yourself. Unfortunately, Google turns up nothing when queried for an open source add connection dialog.