Can U3D use xml comment?

In Visual Studio you can use XML commnet like:

http://msdn.microsoft.com/en-us/library/b2s063f7.aspx

But when I use these to comment in Unity3d,I don’t know how to create xml file
(note:the comment file,not the usual xml file),
How to create xml comment file like in Visual Studio?

This might be a shot in the dark, but if you're used to using Visual Studio, couldn't you just use that as your editor for Unity, and then have it make the comment file? Unity uses Mono's C# compiler, but that doesn't mean you can't use Microsoft's C# compiler in Visual Studio to build the code as well (It builds to a dll-file when you do it from VS).