/// Generates function() Code) or any tool item (like sign
Not sure if you mean instead of the /// comments but there are lots of options from this question here:
https://stackoverflow.com/questions/641364/c-sharp-documentation-generator
There is also these articles here:
http://msdn.microsoft.com/en-us/magazine/dd722812.aspx#id0400027
http://blogs.msdn.com/b/lisa/archive/2010/05/25/how-to-customize-the-xml-comments-that-are-inserted-by-the-visual-basic-code-editor.aspx