QuickHelp has help authoring and deployment for Win 98 through Vista and MacOSX.
License: Demo
OS Support: Win98,WinME,WinNT 3.x,WinNT 4.x,Windows2000,WinXP,Windows2003,Win Vista

HexCmp is a convenient visual binary file comparison application.
License: Shareware
OS Support: Win95,Win98,WinME,WinNT 3.x,WinNT 4.x,WinXP,Windows2000,Windows2003,Win Vista

HexCmp is a convenient visual binary file comparison application.
License: Shareware
OS Support: Win95,Win98,WinME,WinNT 3.x,WinNT 4.x,WinXP,Windows2000,Windows2003,Win Vista

fpHelp add-in renovates Microsoft FrontPage to create Windows HTML (CHM) Helps.
License: Shareware
OS Support: Win95,Win98,WinME,WinNT 3.x,WinNT 4.x,WinXP,Windows2000,Windows2003,Windows Tablet PC Edition 2005,Windows Media Center Edition 2005,Win Vista

fpHelp add-in renovates SharePoint Designer to create Windows HTML (CHM) Helps.
License: Shareware
OS Support: Win95,Win98,WinME,WinNT 3.x,WinNT 4.x,WinXP,Windows2000,Windows2003,Windows Tablet PC Edition 2005,Windows Media Center Edition 2005,Win Vista

HelpBuilder - creates help files for Windows 9x, ME, NT, Win2000, XP.
License: Shareware
OS Support: Win95,Win98,WinME,WinNT 3.x,WinNT 4.x,Windows2000,WinXP,Windows2003,WinME,

Code Commenter and Generator of Class Documentation for VB NET and C#.
License: Shareware
OS Support: Windows2000,WinXP,Windows2003,Win Vista

Help tool for creating helps and documentation for software in popular formats.
License: Shareware
OS Support: Win95,Win98,WinME,WinNT 4.x,WinXP,Windows2000,Windows2003,Windows Media Center Edition 2005,Win Vista

Web-based application designed for viewing hlp, chm and hxs help files.
License: Shareware
OS Support: Win95,Win98,WinME,WinNT 3.x,WinNT 4.x,Windows2000,WinXP,Windows2003,Win Vista

Full-featured help viewer of hlp, chm and hxs formats for both Windows and Linux.
License: Shareware
OS Support: Win95,Win98,WinME,WinNT 3.x,WinNT 4.x,Windows2000,WinXP,Windows2003,Linux,Linux Gnome,Linux GPL,Linux Open Source,Win Vista