3Com INIT and AppleTalk System File



I have encountered a problem involving 3Com's 3+Mail, the 3+File, and the
AppleTalk system file. It seems that 3Com or something is modifying the
AppleTalk file so that the Macintosh bombs (usually ID 3). Throwing out
the AppleTalk system file prevents the system crash, and my Macintosh seems
to run just fine without the file.

What creates this file? What does it do? Why do I need it?


The file contains AppleTalk protocol updates.  AppleTalk is found in ROM,
but when an update is made to AppleTalk, these changes get put in a system
file. This could happen if you're doing a number of system-related
installations:  3Com, EtherTalk, System, etc.

The 3Com INIT is, unfortunately, not "smart" enough to say "I'm not on,
EtherNet, so don't load yet."   If you forget to disable the 3Com INIT and
you boot with LocalTalk selected, you will get a bomb and have to boot from
another disk to start up.


Published Date: Feb 18, 2012