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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.