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Megarom Macintosh CD Software (Quantum Leap)(1992).iso
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INIT⁄EXTEN
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ExtensionMngr 1.6 ƒ
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Notes for Extensions Mgr 1.6
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1991-09-24
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Extensions Manager and EM Extension are © Copyright 1990-91 Apple Computer, Inc.
All Rights Reserved.
by Ricardo Batista. CPU/System Software Group
For Commercial distribution, site licensing or bulletin board distribuition
please contact Apple Software Licensing.
EM is distributed "As is" and unsupported by Apple. Please don't call
Apple for technical support.
••••••••••••••••••••••• QUICK DESCRIPTION: ••••••••••••••••••••••
Extensions Manager allows you turn "off" or "on" the code that executes
at startup in certain "extension documents" such as Control Panels,
Chooser devices and INITs (known before as startup documents).
With System 7.0 there are a few folders where system extensions can be
located, therefore the old style "INIT Managers" do not work well.
••••••••••••••••••••••••••• FEATURES •••••••••••••••••••••••••••••
Extensions Manager is made with System 7.0 in mind. The main features of
Extensions Manager are:
1) System 7 folder structure aware. Still compatible with system 6.0.x
2)* You can add and remove your own file types. This is very useful for
adding other file types which you consider extend your system
such as debuggers and aliases.
3)* Extension sets. Extension sets allow you to quickly enable or disable
a colletion of extensions for which you have given a name. Sets consist
of a name and a number of file types. Therefore the name of an extension
can be changed without having to recreate a set and without worrying about
the location of an extension.
4)* The Startup Items folder is now included in EM. The standard alias type
for applications has also been included so you can prevent applications
from starting automatically whenever you want to.
2) Context sensitive help in all dialogs. (aka Balloon Help)
3) Icons do not get lost when disabling a system extension.
4) Updated as nessesary. (while makes sense)
5) System 4.2 to 7.0 compatibility
CURRENT VERSION ====> 1.6
•••••••••••••••••••••••••• OVERVIEW ••••••••••••••••••••••••
Open the Extensions Manager and you will see a list of your system extensions.
Highlited extensions are enabled. To enable an extension click on its name
so it becomes highlited, to disable an extension click on its name so it
shows unhilighted.
To customize the file types EM designates as extensions first click in the
version number button. This will open a dialog which describes what EM
does and gives you options for recovering Extensions and customizing EM.
A new popup menu allows to save the currently highlited set of extensions
as a set. This menu also allows you to enable, disable and delete sets.
The "Recover Extensions" button in the version dialog scans for extensions
disabled by old style "INIT" Managers. The old style INIT Managers used to
change the file type of an extension so it would not be recognized as an
extension anymore. Many times people would give someone a copy of an
extension that had been disabled by this method and the result is confusion
and frustration because the file does nothing.
The recovering process consists of changing the file type of modified
extensions to its original state.
The "Configure" button in the version dialog shows you two lists of file
types. The first one is designate as files which require an INIT resource
in order to be recognized as an extension. The other list contains the
file types for files which are considered an extension without the need
for an INIT resource to be present in them. In this list you can add
aliases, debuggers, etc.
To enable or disable extensions at startup simply keep the space bar down
while your computer is starting. Extensions Manager will show its window
an allow you to enable and disable extensions before the start process
continues.
This release includes an extension called "EM Extension". Its purpose
is to provide an early way to provide you with the extension enabling/disabling
aid. This was done because under system 7.x the Extensions Folder is scanned
first, then the Control Panels folder and finally the System Folder.
Since Extensions Manager is a Control Panel by the time it gets executed many
extensions have already been loaded. EM Extension simply calls Extensions
Manager earlier in the boot process when the space bar is held down.
EM Extension is usefull only if you are using System 7.
••••••••••••••••••••••• RELEASE NOTES: ••••••••••••••••••••••••
1.5 I lied, there was a mispelling in the balloon help of versions
1.0 and 1.1 In addition, only the main window had balloon help.
Added file type customization. This interface will be redesigned
at a later time.
Added sets and a popup menu for the set functions.
Corrected the balloon help mispelling. Balloon help for hierarchical
menus shows up only for a second. This is the way the Help Manager
works. Balloon help for those items will be removed sometime.
Added balloon help for all windows and dialogs, and had a couple
of beers while doing balloon help.
1.6 Fixed an out of memory problem during the Save Set function. Sometimes
there was not enough memory to resize a pointer based memory block. The
fixed was to use a relocatable handle.