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- From: bredell@tdb.uu.se (Mats Bredell)
- Newsgroups: comp.sys.mac.misc,comp.sys.mac.system
- Subject: Re: disabling extensions: extension manager
- Message-ID: <1993Jan5.100420.23071@tdb.uu.se>
- Date: 5 Jan 93 10:04:20 GMT
- References: <1993Jan4.173131.19551@newsgate.sps.mot.com>
- Reply-To: Mats.Bredell@udac.uu.se
- Organization: Uppsala University Computing Center (UDAC)
- Lines: 35
- X-Newsreader: TIN [version 1.1 PL6]
-
- greg berryman (gpb@gpb-mac) wrote:
- : Mats.Bredell@udac.uu.se writes:
- : :
- : : The original question was about finding a way to force an extension to be
- : : loaded even if the shift key is being held down. The answer is simple: when
- : : the Mac boots, it checks to see if the shift key is down. If so, it doesn't
- : : load any extensions or control panels. You can't change this behaviour.
- : :
- : : Under system 6, the extensions checked for a key combination themselves, but
- : : system 7 has made the shift key as an override that will disable everything.
- : :
- : : One way to force an extension to be loaded is to write a device driver to
- : : do all the job. Device drivers are always loaded at startup. The driver colud
- : : be very simple, it's enough if it simply loads the extension code and starts
- : : executing. As far as I know, no one has done it yet (except for Apple
- : : themselves).
- : :
- :
- : MacPassword does it. Change the behaviour, that is.
- :
- : Greg.
-
- Do you know how it does that? I've seen some security products that simply
- install code into the hard disk driver.
-
- No extension or control panel will be loaded by the system 7 if the shift
- key is being held down. You have to write something else (like a device
- driver) that will load the code.
-
- /Mats
- --
- Mats Bredell Mats.Bredell@udac.uu.se
- Uppsala University Computing Center (UDAC) Ph: +46 18 187817
- Department of medical systems Fax: +46 18 187825
- Sweden Think straight - be gay!
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