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Fixit 18. Check for Problems with Extens... > Sets: Mac OS Base and All

Sets: Mac OS Base and All

Both Extensions Manager and Conflict Catcher include one feature immediately relevant to the topic at hand. The Mac software has now gotten so complex that disabling all startup extensions, by holding down the Shift key, may disable more than you wish. For example, suppose you suspect that an extension conflict may be the root cause of why you cannot connect to the Internet. Holding down the Shift key at startup will not be useful, because doing so will disable a variety of extensions (most especially Apple's Open Transport files) that are needed to connect to the Internet. Thus there will be no way to test whether disabling other extensions has any beneficial effect. To get around this, these two utilities have two options called Mac OS 9.x Base and Mac OS 9.x All. If you are still using Mac OS 8, they will similarly say 8.x. (Actually, they will not say 8.x; they will say whatever version of the Mac OS was current when the latest update to the program was made. For example, it might say Mac OS 8.6 Base.) Selecting one of these options (either from Extensions Manager's Selected Set pop-up menu or Conflict Catcher's Active Set pop-up menu) either enables just a core group of extensions that came with the Mac OS (Base) or all startup extensions that came with the Mac OS (All). Use these options to test for problems with third-party extensions when disabling all extensions would prohibit the necessary test.

Figure F3-1. Apple's Extensions Manager.



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