Hi Michael,
try the following - it should works under eclipse 3.1 M7:
First create your "help plugin" contains only your html-help-files
(possibly as .zip),
your plugin.xml including the [org.eclipse.help.context] extension
and 1 to * context.xml files.
The plugin-attribute of the [org.eclipse.help.context] extension has to
referenz to
the plugin id of your plugin contains the UI-Javaclass displaying your
help (view,
editor or anything else).
You should create a new [org.eclipse.help.context] extension for every
new plugin.
(Sample: [org.eclipse.platform.doc.user])
Inside your context.xml files you have to set a context-id.
Referenz to this ID when you set the help to your ui-javaclass.
=> PlatformUI.getWorkspace().getHelpSystem().setHelp(getControl(),
contextId).
(Sample: [org.eclipse.editors.text.TextEditorPreferencPage])
This shoul work...