Need to reinstall MacHelp - how?

My MacHelp is out of order.
Nothing works except the home-icon, but no links whatsoever.
All other helps in function.
I would like to reinstall only the Help programme but cannot localize it on the Installation Disc (1).
WHen I eventually find it and is ready to reinstall:
Is it really necessary to do safety copies?
Marie

Navigate to ~(yourhome)/library/caches and delete this folder:
com.apple.helpui folder.
Try Help. Did that solve the problem? If not:
Navigate to ~(yourhome)/library/preferences and delete the following files:
com.apple.help.plist
com.apple.helpui.plist
com.apple.helpviewer.plist
Log out and back in or restart.
-mj
[email protected]

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