No. You may put and use your desk accessories anywhere on your hard disk
(including the desktop or in the Apple Menu Items folder).
Putting a Desk Accessory into the Apple Menu
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If you want to put a desk accessory into the Apple menu, drag the desk
accessory onto the System Folder icon. Your desk accessory will
automatically get placed in the Apple Menu Items folder.
Moving a Desk Accessory from The Apple Menu to the Desktop
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If you want to remove a desk accessory from the Apple Menu and put it on
the desktop instead, follow these steps:
1) Open your System folder.
2) Locate and open the Apple Menu Items folder.
3) Locate the desired desk accessory and drag it out of the Apple Menu
Items folder and onto the desktop.
Using a Desk Accessory from System 6
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You may find that older desk accessories appear in desk accessory
suitcases. To use such a desk accessory, open the suitcase by
double-clicking it. Then, drag the desk accessory out of the suitcase
window. You can now use the desk accessory.