Mac OS 8: Internet Applications Require Certain Extensions

Internet application such as Internet Setup Assistant, a Web browser, or an email client require certain extensions. Error messages stating that files or extensions are missing indicate that certain extensions must be enabled or reinstalled.

Symptom

Error messages appear when you open an Internet application such as Internet Setup Assistant, a Web browser, or an email client. The error messages state that one or more of these files or code fragments is missing:



Solution

This behavior may occur if you held the Shift key down at system startup time or if you chose the Mac OS Base Set of extensions in the Extensions Manager control panel, causing one or more extensions to be disabled.


If you still get error messages, the extension(s) may be unusable; perform a custom reinstallation of the affected extension(s).

Published Date: Feb 17, 2012