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-
- ================================================================================
- SHELLMAX.COM : Ver. 2.0, Copyright (1992,93) by Philip B. Gardner
- ================================================================================
-
- SHELLMAX.COM is a utility which loads the primary shell high from the
- SHELL= line in your CONFIG.SYS.
-
- Support is provided for:
-
- * Loading the primary SHELL into high memory
- * Creating a primary SHELL stub in low memory
- (improves compatability with some configurations)
-
- ================================================================================
-
- (Requirements)::
-
- * Requires MS-DOS Version 3.10 or better
-
- ================================================================================
-
- (Installation)::
-
- (CONFIG.SYS)::
-
- Installation of SHELLMAX.COM requires modifying the contents of
- your CONFIG.SYS file.
-
- SHELL=SHELLMAX.COM [options] COMMAND.COM /P
-
- Insert SHELLMAX.COM in your SHELL= line of your CONFIG.SYS.
- SHELLMAX.
-
- (Safety)::
-
- When installing SHELLMAX, it is best if you copy SHELLMAX.COM and
- COMMAND.COM (the primary shell), to the root directory of your boot
- drive. If SHELLMAX fails to function properly with the parameters
- in your SHELL= command line, it will issue a series of error messages,
- and then try and load COMMAND.COM from the root directory. This will
- give you a chance to edit the CONFIG.SYS and correct the problem.
- You should exercise caution and have a boot floppy available.
-
- SHELLMAX is compatible with full SHELL= command line specifications.
- In the following example, neither SHELLMAX.COM or COMMAND.COM is
- required in the root directory after installation is successful, as
- indicated by no error or warning messages.
-
- SHELL=C:\BOOT\SHELLMAX.COM /R- C:\DOS\COMMAND.COM C:\DOS /E:512 /P
-
- All switch options and possible messages for SHELLMAX are detailed
- below:
-
- ================================================================================
-
- (Compatibility)::
-
- (4DOS)::
-
- If you are using Version 4.x 4DOS from J.P. Software, you should
- add the path to 4DOS.COM to the 4DOS command line.
-
- SHELL=SHELLMAX.COM C:\4DOS\4DOS.COM C:\4DOS /p
-
- If this parameter is not added, 4DOS may not set the environment
- variable "COMSPEC=" properly.
-
- (DOS 3.x & 4.x)::
-
- Some versions of DOS incorrectly truncate the command line to 35
- characters for the SHELL= statement in the CONFIG.SYS or fail to
- pass a command line at all if the line is over 35 characters.
- This bug is circumvented by a special algorithum in SHELLMAX. If
- SHELLMAX does not work for you, and you suspect that this is the
- problem, please contact me for assistance.
-
- ================================================================================
-
- (Syntax)::
-
- The only thing to remember about syntax for the command line is
- that just about anything works. What this means is that you
- should be able to type in the options on the command line the
- way they make sense to you.
-
- To illustrate this point, the following command line example
- is mutated several different ways.
-
- SHELL=SHELLMAX.COM /R- /P+ /S+ C:\COMMAND.COM C:\ /P
- SHELL=SHELLMAX.COM -R- -P+ -S+ C:\COMMAND.COM C:\ /P
- SHELL=SHELLMAX.COM /R-/P+/S+ C:\COMMAND.COM C:\ /P
- SHELL=SHELLMAX.COM -R--P+-S+ C:\COMMAND.COM C:\ /P
-
- ... and so on.
-
- SHELLMAX 2.0 and above adds optional full word syntax. The new
- syntax looks like this:
-
- SHELL=SHELLMAX.COM /REPORT:- /PAUSE:+ /FAKESTUB:+ C:\COMMAND.COM C:\ /P
- SHELL=SHELLMAX.COM -REPORT:- -PAUSE:+ -FAKESTUB:+ C:\COMMAND.COM C:\ /P
- SHELL=SHELLMAX.COM /REPORT:-/PAUSE:+/FAKESTUB:+ C:\COMMAND.COM C:\ /P
- SHELL=SHELLMAX.COM -REPORT:--PAUSE:+-FAKESTUB:+ C:\COMMAND.COM C:\ /P
-
- Obviously when using full words, it is easier to keep the words
- separated so that is clear to read. The optional [:] is used
- for toggle switches (i.e. REPORT:+). These optional delimiters
- can also be used with the single letter switches. Exact spelling
- is required because the single letter interface is still intact.
-
- (Switch Options)::
-
- The following list of switch options is organized by:
-
- - Control of SHELLMAX Reports (/R:/P:/N:)
- - Control the Configuration of a Fake Low Memory Stub (/S:)
- - Response file for SHELLMAX (@)
-
- (Control of SHELLMAX Reports)::
-
- (REPORT):: R[+ or -] (toggle: default +)
-
- Use /R- or /REPORT:- to disable the report after you are
- satisfied with the configuration of STOPMAX.SYS
-
- (PAUSE):: P[+ or -] (toggle: default +)
-
- Use /P- or /PAUSE:- to disable the pause after the report as
- long as there are no errors or warnings.
-
- (NOPAUSE):: N[+ or -] (toggle: default -)
-
- Use /N+ or /NOPAUSE:+ to never pause after the report, even if
- there are errors. This switch can be used if your configuration
- generates a warning or error message which you choose to ignore.
-
- (Control the Configuration of a Fake Low Memory Stub)
-
- (FAKESTUB):: S[+ or -] (toggle: default -)
-
- If you use SHELLMAX to load the shell high, then some programs
- (environment editors and some networks), are confused that no
- portion of the primary shell is is low memory. Use /S+ or
- /FAKESTUB:+ to tell SHELLMAX to create a fake stub, which looks
- like the primary shell, in low memory. This stub tracks changes
- to the Master Environment segment pointer by monitoring the real
- stub high (each "get exit code of sub-program" INT 21h, 4Dh).
- The stub size is 256 bytes, so if you use 4DOS, and find that
- you need the low stub, it is better to just let 4DOS do it and
- not use SHELLMAX.
-
- (Response file for SHELLMAX)::
-
- Parameters for SHELLMAX may be read from a response file by using the
- @pathname syntax:
-
- SHELLMAX.COM @RESPONSE.FIL C:\COMMAND.COM C:\ /E:512 /P
-
- Notice that the path to the SHELL is cannot be in the response file.
-
- Response files may be commented by using a ";","#",or "*" character
- before the comment.
-
- * everything in square brackets "[]" is optional
-
- (CONFIG.SYS Line)::
-
- SHELL=SHELLMAX.COM [/R-/P+/N+/S+] COMMAND.COM /P
-
- default: /R+/P-/N-/S-
-
- * Report status messages
- * Don't Pause after report
- * Pause on errors or warnings
- * Don't Fake stub low
-
- ================================================================================
-
- (Report Format)::
-
- SHELLMAX.COM (8086): Ver. 2.0, Copyright (1992,93) by Philip B. Gardner
- ERROR : (Error Messages)
- WARNING : (Warning Messages)
- ADVICE : (Advisory Messages)
- : (Report Messages)
- : (Allocation Status)
- PAUSE : Press any key to continue...
-
- ================================================================================
-
- (Error Messages)::
-
- MS-DOS version 3.10 or above is required
- Bad or missing program specification
- Use SHELLMAX.COM only as CONFIG.SYS SHELL=
- Not enough memory to execute
- Fatal Error, program halted
-
- ================================================================================
-
- (Warning Messages)::
-
- Unknown option in command line
- Unknown option on line #0000
- Extra characters on command line
- Missing or invalid option file XXXXXXXX.XXX
- Line length overflow at line #0000
- Unable to load high, loading low
-
- ================================================================================
-
- (Advisory Messages)::
-
- ================================================================================
-
- (Report Messages)::
-
- Processing option file XXXXXXXX.XXX
- Effection section is [XXXXXXXX]
-
- ================================================================================
-
- (Allocation Status)::
-
- SHELL loaded at 0000
- Not enough Hi Memory for SHELL
- STUB faked at 0000
-
- ================================================================================
-
- (Changes)::
-
- (Version 1.7)::
-
- (1) Found a workaround to 4DOS 4.x initialization hang. 4DOS now will
- load properly. One caveat, add path to 4DOS to the 4DOS command
- line or 4DOS will not find 4DOS.INI or set the COMSPEC variable
- correctly.
-
- (2) Corrected problem with DOS 3.x and DOS 4.x when the standard handles
- were getting closed by mistake.
-
- (3) When COMMAND.COM path argument was a different drive then the boot
- drive, COMMAND.COM was looking for the AUTOEXEC.BAT on the drive
- of the argument instead of the boot drive. Fixed so COMMAND.COM
- processes the AUTOEXEC.BAT from the boot drive.
-
- (4) Version bumped to match DOSMAX
-
- (Version 1.8)::
-
- (1) Added /S+ option to create a fake primary shell stub in low memory.
- This works around environment editor and network compatability
- problems.
-
- (2) Improved error recovery with the goal of trying every way of at
- least loading some shell in the event the algorithum of SHELLMAX
- encounters multiple errors.
-
- (Version 1.9)::
-
- (1) Reorganized code to enable an overlay method of module selection
- to automate processor selection and split up .SYS and .EXE modules
- to reduce the initialization memory to minimum.
-
- (2) SHELLMAX now automatically detects the processor type and chooses
- separate code modules if appropriate. The 186 processor require-
- ment of previous versions is no longer applicable.
-
- (3) Added optional full word syntax to argument parser. The old style
- single letter switch interface is still intact. The switch lists
- now show the optional word with the switch.
-
- (Version 2.0)::
-
- (1) Completely rewritten. Added feature to edit command line if
- the SHELL is bad or missing.
-
- (2) Added option response file input with @filename.opt syntax
-
- ================================================================================
-