ASP.NET Documentation Tool 

The ASP.NET Documentation Tool creates documentation for ASP.NET projects written in VB.NET and C#. Reports are created in standard HTML, Microsoft HTML Help and plain text formats. Includes documentation, Premium Edition contains source code.
asp.net c# csharp vb.net .net framework code document documentation documenter help sql server access database

SQL Documentation Tool 

Automatically documents Microsoft SQL Server databases. Documentation is created in HTML , HTML Help and text formats.
sql server documentation transact sql triggers tables stored procedures tables views columns html document

WinCHM [help authoring tool] 

A html help authoring software that help you create help file easily and quickly.
html help authoring tool html help authoring software create help file make help file creating help file making help file writing help file help file creator help file generater help file editor help maker html help workshop create chm chm maker

ASPHelp 

Produce compiled HTML Help describing the use of anchors, forms, session and application variables, input query strings, redirections and cookies. ASPHelp processes scripts independent of the paths of execution allowing all paths to be included.
asp documentation querystring asp html help page interface information architecture session variables application variables web page

QuickHelp - HtmlHelp - WebHelp 

The modern generation for the production of html help an product documentationīs With QuickHelp you create your product documentationīs quick an easy. The pros against html work shop, robohelp and otherīs:
quickhelp webhelp robohelp htmlhelp quick and easy ebook helptool helpbook help systems create helper

Help Development Studio 

Help Development Studio is a popular, full-featured, stand-alone help authoring tool, which is designed to create WinHelp, HTML Help, and Web Help files from the same source. Download your free trial copy now!
creating help help system help authoring help workshop help compiler help development help editor help software