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HelpScribble 7.7.4
Full-featured, easy-to-use help authoring tool for creating WinHelp (.hlp), HTML Help (.chm), a printed manual and online documentation (on a web site) from the same source, from start to finish. Can import help files created with another tool.
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QuickHelp - HtmlHelp - WebHelp 1.9.6
With QuickHelp you create your product documentation´s quick an easy.
The pros against html work shop, robohelp and other´s:
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