Ref: 99970003
Title: 3+ for Macintosh Release Notes for version 1.2.1 P/N 3314-01
Date: 12-16-88

Copyright 3Com Corporation, 1991.  All rights reserved.

This document includes general-use release notes about the 3+
for Macintosh network.  Read this information carefully
before using your 3+ for Macintosh User Guide.

The Release Notes are divided into these sections:

.BR;General Information
.BR;File System Information
.BR;Application Compatibility Information
.BR;IBM PC Netstation Information
.BR;3+Route and 3+NetConnect Support
.BR;Switch Launching

Where applicable, each note is accompanied by a manual title
and page reference indicating the location of related
information.

The documents referenced in the following pages are:

.BR;3+ Share for Macintosh User Guide
.BR;3+ for Macintosh Supplement

For error or status messages, see Appendix A in the 3+ for
Macintosh User Guide.

Apple Computer, Inc. makes no warranties, either express or implied,
regarding the enclosed computer software package, its merchantability
or its fitnessfor any particular purpose.  The exclusion of implied
warranties is not permitted by some states.  The above exclusion may
not apply to you. This warranty provides you with specific legal
rights.  There may be other rights that you may have which vary from
state to state.

.H1;General Information

Startup
User Guide, p. 2-4

If your Macintosh netstation beeps during startup it
indicates that 3+ for Macintosh installation has failed.
The 3+ icon in the Welcome to Macintosh box will
be displayed with an X through it, indicating an
unsuccessful startup.

When you start up your Macintosh netstation with 3+ for
Macintosh, be sure not to hold down the 3 key
(character key on the keyboard).  Holding down
this key prevents  the 3+ for Macintosh system software
from loading, and you will not be able to log in.


Startup and the 3+ Prep File
User Guide, p. 2-4

If you start up your Macintosh with 3+ for Macintosh
and receive error messages that you are unsure of (for
example; "name server not responding", "Could not find
name in Name service", etc.), first confirm that your
network connection is properly set up.  If you are using
someone else's startup disk or a copy of someone else's
startup disk, it is likely that the 3+Prep file on that disk
is causing the problem.  Remove it from your System
Folder, and restart your Macintosh.


AppleTalk Active
User Guide, p. 2-6

When using the 3+ network on AppleTalk, the Chooser
must  indicate that AppleTalk is Active at all times.  If
you click Inactive, your netstation will not be able to
access the server.  If this occurs, open the Chooser from
the Apple menu, click the AppleTalk Active button, and
restart your Macintosh.  Restart your Macintosh to
reestablish the link between your netstation and the
server.

Login and Domains
User Guide, p. 2-7

If a large number of domains exist on your network, not
all of them will be displayed in the domain menu in the
Login box.  To log in as a user in a domain that is not
displayed, enter your user name and domain in the Name
box using a colon to separate them.  For example, Jeff
Mason:HQ.


Switching Between AppleTalk and Ethernet
Cabling
User Guide, p. 2-7

To switch between using AppleTalk and Ethernet
cabling, always log out before changing the Control
Panel setting.  Then restart your Macintosh netstation.
Do not change the Control Panel network setting without
restarting your netstation if you are using 3+ for
Macintosh.   Switching from Builtin (AppleTalk) to
EtherTalk while still logged in causes any 3+
connections to return a "Server not responding" error
message.

If you switch without logging out,  you may not be able
to link to your Home Folder or other private Shared
Folders.  Contact your network administrator to unlink
you from all servers to which you may have been
connected.

Logging In With 3+Admin
User Guide, p. 2-8

You are now allowed to log in after opening the
3+Admin application   If you are not logged in when you
open 3+ Admin, the Login dialog box is displayed to
allow you to log in.  Clicking the Cancel button returns
you to the Finder.


Creating or Changing the Startup
Configuration
User Guide, p. 2-18

To create or change the startup configuration, open the
Chooser, log into the network, link to the desired Shared
Folders or printers, click Status in the 3+ Network
Window, click Save as Startup, and click OK.  To
delete the startup configuration, open the System Folder
and drag the 3+ Prep file into the trash can.  To disable
3+ Prep when restarting your Macintosh, simply hold
the mouse button down after Welcome to Macintosh
is displayed.


Shutting Down Your Macintosh
User Guide, p. 2-23

Choose Shutdown before turning off your Macintosh
netstation.  The recommended procedure is to save your
latest work, quit your application, and choose
Shutdown or Restart from the Special menu in the
Finder.  Shutdown unlinks all network objects, logs
you out of the network, and ejects any diskettes in the
netstation drives.


Using 3+Print
User Guide, p. 3-1

When you hold down the Option key when selecting
3+Print from the Chooser, only the currently linked
printer will be displayed within the Chooser list.  This
happens almost immediately, removing the delay which
can otherwise occur while the 3+ for Macintosh software
polls all of the servers in the user's domain for printers.


Rebuilding the Desktop on a Shared Folder
User Guide 4-1

If for any reason you decide to rebuild your desktop on a
network Shared Folder (by holding down the
Command and Option keys when starting up or
returning to the Finder), do so from the Home Folder
level or another first level shared directory (such as
3Plus or APPS if shared by the server-user).


Write/Create Shared Folders
User Guide 4-14

Macintosh netstation users linked to Shared Folders with
Write/Create access rights can copy files to the Shared
Folder, but not see them.  IBM PC or compatible
netstation users can use the DIR command to see the
names of all files in a directory with Write/Create access
rights, but cannot read them.


Keyboard Equivalents

For 3+ for Macintosh version 1.2.1, the keyboard equivalents
are as follows:

.BR;3+ Network Window
.BR;Status  Command-S
.BR;Options Command-O
.BR;Getinfo Command-G
.BR;Up a level Command-Up Arrow
.BR;Down a level Command-Down Arrow

Status Dialog
Save as startup Command-S

Getinfo User/Server/Shared Folder in 3+File
New password Command-N

Delete password Command-D (functional only in Getinfo
User and Server)


User Guide Appendix A

The message

"server:domain:organization" is not responding.  Retrying...

indicates that the server is not responding to requests.  3+ will
continue trying to establish communication with the server
unless you cancel by pressing Command-. (period).
Cancelling the operation breaks all connections to the indicated
3+Share server.  If you cancel, restart your Macintosh and log
in before continuing work.

NOTE: Wait at least one full minute before pressing
Command-. (period).


.H1;File System Information

User Guide 4-7

A Macintosh user will be unable to create or move a
folder into another folder if the full pathname of any
folder or file exceeds a  92 character pathname limit.
This still permits a fairly deep folder environment
(approximately 9 levels deep with large folder names).
If shorter names are used, still greater depth is possible
(subsequent renaming may be prevented if the 92
character pathname limit is exceeded).  Attempting to
exceed this limit results in the Finder displaying
messages indicating a disk error or an unknown error.

If you share directories that are deep within an existing
folder hierarchy, the maximum depth of any newly
Shared Folder is restricted because of the pathname
length limit (pathnames from the root directory).  The 92
character pathname limit is further explained under the
IBM PC Netstation Information  section of the release
notes.


User Guide, p. 4-13

Shared Folders, or folders that contain Shared Folders,
should not be renamed or moved.  Users linking to a
Shared Folder that has been renamed or moved will be
unable to access the files and may receive an error
message.  If you want to change the name of a Shared
Folder, unshare the folder first, then reshare it with a
new name.  If you want to move a Shared Folder to
another location, unshare it first, move the folder, then
reshare it.

A folder can be assigned more than one Shared Folder
name.  It is not advisable, however, for a user to link
through two different Shared Folder names to the same
folder.  Doing so may lead to the accidental deletion of
files.  Both Shared Folder names actually represent the
same information on the server's disk.

When attempting to copy a file from one to the other,
data will be lost.  The Finder will present a message
asking if the user wants to replace the existing file in the
destination folder with the new one.  Since these two
files are actually one with the same name, the Finder is
trying to replace that file with itself.

When the user clicks Yes, the Finder deletes the file
from the destination folder before it attempts to copy the
file from the source folder.  As a result the file is
mistakenly deleted before it can be copied, and its data
will be lost.

.H1;Application Compatibility Information
WriteNow

Version 1.0 of WriteNow will not work reliably when
opened in a 3+ Shared Folder.  Use a later version.


ResEdit

User Guide, p.1-6

The developer's tool ResEdit (version 1.0) is limited to
work only on files in the root level (the window that
opens when you double-click on the Shared Folder icon
on the desktop) of 3+ Shared Folders.  To use ResEdit
on a file outside of the root level, first move the file to
the root level.


AppleShare and 3+ for Macintosh

User Guide, p. 2-16

To use AppleShare and 3+ for Macintosh from the same
diskette or hard disk, start with an AppleShare boot
diskette (because AppleShare modifies the System file).
Copy 3+ File, 3+ Print, and 3+ Icon Giver from
the System Folder of your 3+Share User for Macintosh
diskette to the System Folder of your AppleShare
diskette.


Cricket Draw

User Guide, p. 3-2

To print using the Cricket Draw application version 1.0,
you must rename the 3+ Print file in your System Folder
to LaserWriter.  Cricket Draw 1.0 only sends files in a
PostScript format when the 3+ Print file is named
LaserWriter.  Renaming 3+ Print will not affect any
other 3+ for Macintosh network operations.  The
Chooser will still show the 3+ Print icon, but it will be
named LaserWriter.

PageMaker

User Guide, p. 3-6

For best results with PageMaker 2.0, use the Apple
LaserWriter driver.  Permanently downloading the Aldus
Prep file causes the LaserWriter to run out of memory
very quickly.  To download Aldus Prep temporarily,
open the PageMaker Print dialog box, hold down the
Option key, and click Print.  Click the Make Aldus
Prep permanent checkbox to remove the X.  Then
send the document to be printed.  For complete
information on this PageMaker option, see "Using
PostScript Options" in your PageMaker manual.  Only
PageMaker versions 2.0 and later are supported in 3+
for Macintosh.


MacWrite

User Guide, pps. 4-18, 4-19

Only MacWrite version 4.6 or later is supported.

Using XCOPY or any other DOS copy/move utility
programs to copy or move Macintosh files and
directories is not supported in 3+ for Macintosh 1.2.1
and WILL NOT work correctly.  DOS utilities programs
cannot properly accommodate the MacFS support
information that is associated with these files or folders.
Users or network administrators must use the Finder on
the Macintosh for copying or moving Macintosh files
and directories.


.H1;IBM PC Netstation Information
Supplement, Appendix B

IBM PC or compatible netstation users should exercise
caution in copying Macintosh files.  If a file is created on
a Macintosh netstation and an IBM PC or compatible
netstation user attempts to copy it, the file's resource
fork will (if present) not be copied and the Macintosh
attributes will not be carried forward.  Without this
information the file will not be accessible.  See Appendix
B of the 3+ for Macintosh Supplement  for complete
information on the Macintosh data and resource forks
(Appendix B covers the Macintosh service parameters;
Macintosh threads, MS-DOS data fork extension, MS-
DOS resource fork extension, and MS-DOS file
extension mappings).


User Guide, Appendix D

Because of the way pathnames to server directories and
files are managed in Share (DOS), there is a limitation on
the depth of a folder hierarchy in terms of a maximum
DOS pathname length.  The current limit is set at 92
characters and includes the drive ID ("c:\x\y" is 6
characters long).  Folders created on a Macintosh that
have names that are not legal DOS names will always
have DOS names 8 characters in length or less.


User Guide, Appendix D

Renaming folders is not permitted if the length of any
folder or file pathname will result in a violation of the 92
character pathname limit.

IBM PC and compatible netstations users should know
that the file/folder name length of the DOS directory
listing being displayed as 0 (zero) is valid for
applications and some types of documents when doing a
DIR listing.  The DOS DIR directory command can
display the file/folder name length as 0 (zero), but users
should be cautioned against deleting this file without
first using the MACDIR command.

 This is due to the differences between the DOS and the
Macintosh File Systems.  A zero length file may be an
empty data fork for a Macintosh file.  Use the
MACDIR command to verify the full file/folder name.
MACDIR will display a directory somewhat similar to
a DOS directory listing, but with Macintosh file system
information added.  The full name of the file/folder
within the Macintosh file system can consist of up to 31
characters, some of which are illegal in DOS names,
such as spaces.  File naming, therefore, will not
necessarily look the same.  If you are unsure about the
status of a file seen in a DOS DIR listing, use the
MACDIR listing before deleting anything.  Refer to the
3+ for Macintosh Supplement, Table B-1, for an
example.


.H1;3+Route and 3+NetConnect Support
In this release, Macintosh netstations are not  able to use
3+Route to access Shared Folders and printers on remote
servers via modem and telephone line connections.  IBM PC
and compatible users can to use 3+Route to send and receive
messages with 3+Mail.  Full 3+Route support for Macintosh
netstation users will be included in a future release.


.H1;Switch Launching
This section briefly describes switch launching.  Switch
launching allows you to switch from using the System Folder
on your Startup diskette to using a System Folder in another
location.

This release of 3+ for Macintosh provides a way to
automatically switch launch to your network Home Folder
when you start up your Macintosh netstation, and at that time
eject your Startup diskette.

One advantage of switch launching, either manually or
automatically, is that once your Startup diskette is ejected you
can insert other diskettes without constantly having to swap
back and forth.  Another advantage is the ability to add any
desired fonts or desk accessories to your System file.  Since
you can have a System Folder on the network server, you do
not have to worry about available space on an 800K diskette.


NOTE:  You can only switch launch to your Home Folder.
Switch launching to other Shared Folders is not permitted.
This prevents two users from switching to the same System
Folder.


Make sure that the latest versions of 3+ for Macintosh and
Apple system software are present in the Home Folder's
System Folder.  When you try to print after switch launching,
for example, you will get an error message if you do not have
3+Print in the Home Folder's System Folder.

.LT
1. Start up your Macintosh netstation using your
   3+ for Macintosh Startup diskette.

2. Log in and link to your Home Folder and any
   other Shared Folders or printers desired.

3. Copy the System Folder from your 3+ for
   Macintosh Startup diskette into your Home
   Folder.

4. Switch launch to your Home Folder.
.EL

You can switch launch using any one of these methods:

Open any application resident in your Home Folder.

Hold down both the Command and Option keys and double click on either
the Finder or MultiFinder in your Home Folder's System Folder.

Use NetSwitch or NetSwitch MF as described in the following sections.


NOTE:  Make sure your Startup diskette is not set to
use MultiFinder.  Apple System software does not
support switch launching to another diskette or folder if
you are currently using MultiFinder.  When you switch
launch you can use MultiFinder from your Home Folder,
but you must still set the Startup diskette to use Finder at
startup.


NetSwitch

NetSwitch is a utility that allows automatic switch launching to
your Home Folder each time you start up your Macintosh
netstation.  The advantage of using this utility is the
elimination of confusion about which System file you are
using.  NetSwitch opens the Finder on the network.  If you
want to use MultiFinder, refer to the NetSwitch MF section.
If you do not have the NetSwitch application on your diskette,
contact your network administrator.

.LT
1. Start up your Macintosh netstation using your
   3+ for Macintosh Startup diskette.

2. Log in and link to your Home Folder and any
   other Shared Folders or printers desired.

3. Using the 3+ Network Window, save your
   startup settings from the Status dialog box to
   create a 3+Prep file on your Startup diskette.

4. Make sure you have a System Folder in your
   Home Folder. (Copy the System Folder from your
   Startup diskette, if necessary.)

5. From the Finder, click on the NetSwitch icon.

6. Choose Set Startup... from the Special Menu.

7. Select Finder at the top of the dialog box; select NetSwitch from
the bottom of the dialog box; click OK.

CAUTION:  At the top of the dialog box, be sure to select Finder, not
MultiFinder, and at the bottom of the box, select NetSwitch.

8. Restart your Macintosh netstation.
.EL

You are automatically switch launched to the Finder on the network,
and your Startup diskette is ejected.


NOTE:  If you attempt to log out or unlink the Home
Folder after switch launching to it, a message appears
indicating you should shut down or switch launch to
another diskette before taking this action.


The Save Startup check box in the Status dialog box is
disabled after switch launching.  If you want to change your
Startup configuration, refer to "Changing Startup Settings
after Switch Launching" later in this section.


NetSwitch MF

NetSwitch MF operates the same way as NetSwitch, except
that it automatically runs MultiFinder instead of Finder from
your Home Folder.  The MF in NetSwitch MF stands for
MultiFinder.

.LT
1. Perform steps 1 through 4 from the previous
   section.

2. From the Finder, click on the NetSwitch MF
   icon.

3. Choose Set Startup... from the Special menu.

4. Select Finder at the top of the dialog box;
   select NetSwitch MF from the bottom of the dialog box; click OK.
.EL

CAUTION:  At the top of the dialog box, be sure to
select Finder, not MultiFinder, and at the bottom of
the box, select NetSwitch MF.


NOTE:  If you attempt to log out or unlink the Home
Folder after switch launching it, a message appears
indicating that you should shut down or switch launch to
another diskette before taking this action.


The Save Startup check box in the Status dialog box is
disabled after switch launching.  If you want to change your
Startup configuration, refer to "Changing Startup Settings
after Switch Launching" on the next page.

Changing Startup Settings after Switch Launching
You can change your default 3+ for Macintosh startup settings
when using NetSwitch or NetSwitch MF.

To change your current 3+ for Macintosh startup settings:

.LT
1. Start up your Macintosh using your 3+ for
   Macintosh Startup diskette.

If you followed the switch launch procedures in the
previous section, you are automatically switch launched
and the Startup diskette is ejected.

2. Insert the Startup diskette into the disk drive.

If you did not use NetSwitch or NetSwitchMF, the
Startup diskette will still be in the drive.

3. From the Finder, click on the Startup diskette
   icon.

4. Choose Set Startup... from the Special menu.

5. Select Finder at the top of the dialog box;
select Finder Only from the bottom of the
dialog box; click OK.


CAUTION:  At the top of the dialog box, be sure to
select Finder, not MultiFinder, and at the bottom of
the box, select Finder Only.


6. Restart your Macintosh netstation.

7. Select Chooser from the Apple menu.

8. Click 3+File.

If you are already logged in, click Network.  If not, log
in and link to your Home Folder and any other Shared
Folders or printers desired.

NOTE:  If you unlink your Home Folder, you will note
be able to switch launch.


8. Using the 3+ Network Window, save your
startup settings from the Status dialog box to
create a 3+Prep file on your Startup diskette.

9. From the Finder, click the NetSwitch (or
NetSwitchMF) icon.

10. Select Set Startup... from the Special menu.

11. Select Finder at the top of the dialog box;
select NetSwitch from the bottom of the dialog
box; click OK.
.EL

CAUTION:  At the top of the dialog box, be sure to
select Finder, not MultiFinder, and at the bottom of
the box, select NetSwitch (or NetSwitch MF).


Every time you start your Macintosh netstation, the 3+ for
Macintosh Startup settings saved in this procedure are in
effect.
