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README.SCS
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1993-01-01
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README.SCS file
---------------
Screen Saver version 5.1
========================
I. DESCRIPTION OF INCLUDED FILES
II. PRODUCT INSTALLATION
III. UPGRADING FROM PREVIOUS VERSIONS
IV. SUMMARY OF NEW FEATURES & CHANGES
I. DESCRIPTION OF FILES
=======================
INSTALL.EXE Product Install Program (disk distribution only)
INSTALL.HLP Install Program Help File (disk distribution only)
DISKID.DAT Control file used by INSTALL (disk distribution only)
UNPACK.EXE Product Unpack Program (alternate to INSTALL.EXE)
SCSV1.LZH Archive containing the files listed below.
README.SCS Installation notes and instructions (this file)
SCSAVER.DOC Screen Saver reference documentation
SCSAVER.VER History of changes to Screen Saver versions
SCSAVER.REG Product registration form
SCSAVER.API Application Programming Interface description
SCSAVER.COM Resident program
SCSLOG.COM Resident event logger program
SCSAVINS.EXE Setup program
SCSAVINS.HLP Setup program help file
SCSAVPSW.EXE Password change program
SCSAVPSW.HLP Password change program help file
SCSLOAD.EXE Application Load program
SCSREMOV.EXE Resident program removal program
SCSCGA.EXE CGA option modification program
I54ADAPT.SYS Interrupt 54 adapter program (fixes some BIOS problems).
SCSV.ZIP ZIP archive for distributing to bulletin boards.
II. PRODUCT INSTALLATION
========================
If you received the product from Compuserve or a Bulletin Board
System, you most likely received an archive file or self-extracting
archive. You should unpack this file using the appropriate
unarchiving program (PKUNZIP, LHA, etc). If the file is
self-extracting (that is, has a .EXE extension), you should run the
program to extract the individual files.
When the product is distributed on disk (for example, when registered
users receive upgrades), an install program is included and may be
used to simplify installation. In the examples below, it will be
assumed that the floppy drive is drive A:.
(Place the distribution disk in drive A:)
A:
INSTALL
(Follow the instructions shown)
If you have a monochrome monitor attached to a color adapter (or an
LCD laptop), you may type INSTALL /MONO to force the displays into
monochrome.
If you do not wish to use the INSTALL program, you may extract the
files manually by running the program UNPACK.EXE and specifying the
names of the .LZH files to be unpacked. For example:
A:UNPACK A:*.LZH
After installing or unpacking the product, you should print the
manual, SCSAVER.DOC, and follow its instructions for setting up and
running Screen Saver. To print the documentation, type the following
at the DOS prompt:
COPY SCSAVER.DOC PRN
Print is formatted for 8.5" x 11" paper.
III. UPGRADING
==============
Note to QEMM users who have OPTIMIZEd their systems
---------------------------------------------------
If you are upgrading from a previous version and have used QEMM's
OPTIMIZE program to load SCSAVER into a specific UMB region, it is
recommended you rerun OPTIMIZE after installing SCSAVER 5.1.
SCSAVER.DAT conversion:
-----------------------
Be sure to run the setup program SCSAVINS.EXE to resave your option
file. If you do not need to change any of the options, the /SAVEONLY
command-line switch will cause the option file to be resaved without
intervention.
Users of the MS-DOS 5.0 shell and task switcher (DOSSHELL) program
------------------------------------------------------------------
The DOSSHELL, included with MS-DOS 5.0, issues a video interrupt when
updating its on-screen clock. This will cause Screen Saver to reset
its count-down timers unless it was loaded with the /V- option.
Screen Saver supports the MS-DOS 5.0 Task Switcher API and will
cooperate to restore mouse monitoring between task switches.
IV. SUMMARY OF NEW FEATURES & CHANGES - Version 5.1
====================================================
Screen Saver now supports the Hercules monochrome graphics cards.
Detection of these cards is automatic when the card is installed.
The new /F: option in SCSAVER.COM will allow the name and path of
the option file (SCSAVER.DAT) to be specified on the command line.
Other programs such as SCSAVPSW and SCSAVINS will now accept the name
of the option file on the command line.
The new /S:nnn option in SCSAVER.COM will allow the you to specify
how sensitive Screen Saver is to mouse movement when determining
inactivity. Setting this to a non-zero value can prevent Screen
Saver from restoring the screen when the mouse moves slightly (like
when your desk is bumped).
The new /A:nn option in SCSAVER.COM can be used to limit the number
of incorrect password attempts after the lock has engaged.
Specifying zero will allow unlimited unlock attempts.
The new /T+, /T- option in SCSAVER.COM replaces the /VTRAP option of
SCSLOAD.EXE and extends this functionality to the resident monitor.
This makes it no longer necessary to load programs with SCSLOAD in
order to use the vector trapping capability of /VTRAP and allows
vector trapping to work with TSR programs.
A new program has been added to enhance security. SCSLOG.COM is a
TSR (terminate-stay-resident) event logger that will record various
events, such as when the lock has engaged, attempts at entering a
password, changes to the resident parameters, etc.
Screen Saver will now handle 3-button mice, as long as they use a
Microsoft-compatible mouse driver. It also correctly handles the
Borland Turbo Debugger mouse calls.
SCSAVER will now only reload the default options when the /F (or
/F:name) switch is specified. Previously, it would reload the
default options if executed without command line parameters. Default
options are still loaded (and merged with any command-line
parameters) the first time SCSAVER is run.
The program SCSCGA.EXE has been added to correct a problem on older
CGA and MDA screens. Under DOSSHELL (or any program which uses
high-intensity characters), Screen Saver may cause the screen to be
restored blinking. This can be prevented by running SCSCGA in the
AUTOEXEC.BAT following SCSAVER.COM.
The resident monitor (SCSAVER.COM) will now aggressively take-over
the keyboard interrupt when the lock engages. This will insure that
the user is allowed to enter the password to unlock the system, even
when running terminal emulation and game programs that do not
correctly cascade the keyboard interrupt.