Other Apple Troubleshooting Tools
While the tools in the previous section are specific to Mac OS X, some of those in this section are particular to Mac OS 9.
Extensions Manager
Extensions Manager is a Mac OS 9 control panel that gives you detailed information about the extensions, control panels, shutdown items, and startup items in the System Folder. Besides showing you what is present, it also gives you control over which of these elements are loaded at startup. This is often useful in resolving software conflicts in which two items work fine independently but clash when both are loaded.
Mac OS X does not have the same sort of extensions and control panels as Mac OS 9, so there is no similar utility for managing these types of startup items ...
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