If using Vb2005, typing 3 single quotes above a method/member etc will create a template for you to fill like:-

VB Code:
  1. ''' <summary>
  2.     ''' An abstract base class that a document area writer class must implement
  3.     ''' to draw data onto a structured print document
  4.     ''' </summary>
  5.     ''' <remarks>This interface defines teh bare minimum requirement but
  6.     ''' implementing classes can extend the functionality by implementing
  7.     ''' extra parameters</remarks>
  8.     Public Interface IStructuredPrintDocumentAreaWriterBase

Fill this in and then use the Sandcastle tool (available for free download from Microsoft) to compile it up to a help file that integrates with MSDN help...