Universal Report 

Universal Report is a generic source code automatic documentation tool. It generates a structured and highly formatted overview of a given set of source codes, including objects and database, after a few mouse cliks.
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VBdocman 

Generates documentation from VB source files. It parses source code and automatically creates table of contents, index, topics, cross-references and context sensitive help in CHM, HLP, HTML, RTF, XML and others. It works as Visual Basic Add-In.
vbdocman vb documentation automatic generate chm hlp html rtf xml help add-in comment editor