What steps do I need to take to change the default action on Windows XP and Windows 7 when someone tries to open a CHM file? I want the file extension to be associated with notepad.exe for ALL ...

The CHM format is a Microsoft online extension file for accessing documentation and help files, and the compressed HTML format may hold text, images, tables, and links -- when used legitimately.

This version includes support of merged CHM and .COL files, support for external (relatively to the current topic) JS files, multiframe pages. Some of the product features are fast file open, ...