Some applications require access to a code library named AppleGuideGlueLib, which is part of the Apple Guide system extension. If the Apple Guide system extension is turned off or not installed, the application cannot operate.

Symptom

When opening an application program, an alert box appears with an error message that says:

"The application cannot be opened because 'AppleGuideGlueLib' cannot be found."

Products affected

• application programs
• control panels, such as the Mac OS 9.1 Monitors control panel

The Apple Guide system extension is turned off or not installed.

• If the Apple Guide system extension is turned off, use the Extensions Manager to turn on the Apple Guide system extension and then restart your computer.
• If the Apple Guide system extension is not installed, perform a custom installation of Mac OS Help from your original system software.