Help file downloads

These are Windows .chm compiled HTML help files.

One is for the current version, the others are for (some of) the older versions.

When first downloaded, Windows systems may refuse to open the help file, showing "Navigation to the webpage was canceled!"; this is caused by a standard Windows security action; to enable viewing:

version 3.0.0.0
version 2.8.0.0
version 2.7.0.0
version 2.6.2.3
version 2.6.1.0
version 2.6.0.0
version 2.5.0.0
version 2.4.0.0
version 2.3.0.0
version 2.2.0.0
version 2.1.0.0