CHM Editor is a handy WYSIWYG editor which can be used for editing and translating CHM files. You can translate your e-Books in CHM format easily and quickly. Besides, this is a perfect tool for localization of your CHM Help files. 
Microsoft Compiled HTML Help is a proprietary format for online help files, developed by Microsoft. It was first introduced with the release of Windows 98, and is still supported and distributed through Windows XP and Vista platforms. Most often the format is used to create help files for software products. Besides, CHM format is increasingly being used for creation of electronic books (e-books). Until quite recently editing files of such format was a long and labour-intensive process – one had to use special programs (compilers), which didn’t have WYSIWYG interface and required certain skills of working with it.
Text editor is considered to be the basic instrument for every software developer. Convenient location of panels, menu, and vast tools for working with text, as well as the possibilities of flexible integration with compilers – everything is of great importance.
The balance of possibilities, easiness of perception and usability are usually given considerable prominence to.
