TITLE
    Mac OS Help: Required Extensions
Article ID:
Created:
Modified: 		58064
9/9/98
4/14/00
TOPIC

    When trying to run Mac OS Help, I have gotten the following error messages at different times:

    "Help Viewer requires QuickTime 3.0 in order to run."

    - and -

    "Help Viewer requires AppleScript in order to run."

    I have also found that Help Center and Mac OS Help are not available from the help menu.

DISCUSSION

    The Help Viewer application uses both AppleScript and QuickTime and will not launch if those technologies are not installed or functioning. Both the QuickTime extension and the QuickTime Power Plug extension are required for QuickTime to work. Both the AppleScript extension and the AppleScriptLib extension are required for AppleScript to work.

    If the Apple Guide extension does not load, there will be no option for "Help Center" or "Mac OS Help" under the Help menu.

    Extensions can fail to load if they're missing, damaged or if there is insufficient memory available to the system software. If you use the Mac OS 8.5 CD to start up a Power Macintosh with less than 24 MB of physical RAM, there is not enough RAM to for Apple Guide to load.

Document Information
Product Area: Mac OS System Software
Category: Mac OS 8.5
Sub Category: General OS Topics

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