home *** CD-ROM | disk | FTP | other *** search
- *** HOT-DOS ***
- Demonstration Version 1.04D
-
- Copyright (C) 1985
- Robert Best
-
- The following documentation describes the operation of HOT-DOS, a small but
- powerful program that, with the press of the LEFT-SHIFT -- RIGHT-SHIFT
- combination, allows any currently executing program to be temporarily
- suspended so that a second copy of COMMAND.COM can be loaded and run in the
- background (the aptly named HOT-DOS partition.)
-
- To load HOT-DOS simply type HOTDEMO at the DOS prompt. From that point on,
- any simultaneous pressing of the LEFT-SHIFT -- RIGHT-SHIFT keys will
- automatically save the entire current state of the operating system, followed
- by the execution of a newly loaded command processor. It's like having two
- computers in one! To return to your primary application, type EXIT at the
- DOS prompt. That is all you need to know to use this program!
-
- Let me emphasize that this Demonstration Version of HOT-DOS has purposely
- been severely limited in its capabilities. I will briefly mention the
- limitations, followed by a thorough discussion of the full capability
- available in the authorized version.
-
-
- ** SIDEKICK COMPATIBILITY **
-
- The demonstration version of HOT-DOS is not compatible with Sidekick (tm).
- To use Sidekick (tm) with HOT-DOS you must obtain the authorized version.
- The authorized version has been thoroughly tested with Sidekick (tm), and
- appears to function flawlessly. This combination of resident programs
- creates an extremely powerful environment. Serious users of Sidekick (tm)
- will wonder how they managed without a HOT-DOS capability.
-
-
- ** USER CONFIGURABLE PARTITION SIZE **
-
- The demonstration version of HOT-DOS uses the minimum partition size required
- to load COMMAND.COM. This will allow users to load and execute any
- application program using less than approximately 20K. This size is
- sufficient for most DOS commands, but will not support most applications.
- The authorized version of HOT-DOS allows the user to set the size of the
- partition at load time. This feature makes it possible to configure your
- memory allocation to suit any particular requirements. The size of the
- HOT-DOS partition can be set anywhere from 20K to the limit of RAM installed
- in the user's machine.
-
-
- ** USER CONFIGURABLE DRIVE SPECIFICATION **
-
- The demonstration version of HOT-DOS uses the A: drive to search for
- COMMAND.COM. A copy of COMMAND.COM must be included in the root directory of
- a diskette inserted in drive A: for the program to properly load and execute.
- The authorized version of HOT-DOS allows the user to specify the drive to be
- searched for COMMAND.COM. This feature allows COMMAND.COM to be accessed
- from the root directory of any drive configured on the system. I personally
- recommend accessing from a RAM disk for virtually instantaneous loading of the
- HOT-DOS environment.
-
-
- ** AUTOMATIC DISPLAY DETERMINATION **
-
- The demonstration version will automatically determine which display adapter
- (monochrome or color/graphics) is currently being used, and will load the
- HOT-DOS environment using this display. HOT-DOS has only been tested on IBM
- compatible standard monochrome and IBM compatible standard color/graphics
- adapters. It has not been tested on EGA or Hercules display cards. I cannot
- vouch for its compatibility using either of these options.
-
-
- ** USE BOTH SCREENS **
-
- The demonstration version has been designed to run on only one screen. For
- users having both the IBM monochrome and IBM color/graphics or compatible
- displays available, the authorized version of HOT-DOS includes a valuable
- feature that automatically loads the HOT-DOS environment on the display that
- is NOT currently active. This allows the user to refer to data on the
- primary screen while running HOT-DOS on the other screen. The user maintains
- the option of switching screens at any time in either environment. Upon EXIT,
- HOT-DOS will restore the primary environment exactly as it was executing
- prior to activating HOT-DOS.
-
-
- ** GRAPHICS SUPPORT **
-
- The demonstration version of HOT-DOS does not support any of the graphics
- modes available using the IBM color/graphics adapter. If a primary
- application is running a graphics display application, the screen will not be
- restored properly upon EXIT from HOT-DOS. The authorized version of HOT-DOS
- will restore any graphics mode screen upon EXIT from HOT-DOS at the expense
- of an additional 12K RAM required for use as a buffer.
-
-
- ** IMPORTANT NOTE REGARDING USE OF HOT-DOS DEMONSTRATION PROGRAM **
-
- As is evident in the preceding documentation, the HOT-DOS Demonstration
- Program has been designed to give the user a taste of the enormous capability
- provided by HOT-DOS without offering the full benefits available with the
- authorized version. As a further limitation in the Demonstration version,
- you will be allowed only THREE opportunities to escape to the HOT-DOS
- environment after any boot of the system. After three accesses, the HOT-KEY
- (LEFT-SHIFT -- RIGHT-SHIFT combination) will be disabled.
-
-
- The potential user of HOT-DOS is encouraged to thoroughly test the
- Demonstration version to adequately determine whether it will run compatibly
- on their system configuration. During the testing of HOT-DOS, I have
- discovered several preventable problems and have provided the following
- solutions:
-
- 1) Do not load any RESIDENT application in the HOT-DOS environment. Doing
- so will surely destroy the integrity of the DOS memory allocation chain.
-
- 2) Do not load any application that will overlay without checking for the
- top of memory location stored in the Program Segment Prefix. A program that
- overlays above the top of available memory (in the HOT-DOS partition) will
- overwrite the memory chain block of the primary application, not to mention
- the PSP and part of the primary application itself!
-
- 3) Do not load BASIC in the HOT-DOS environment if BASIC is currently
- suspended in the primary environment.
-
- 4) If you mistakenly type EXIT at the DOS prompt in the primary environment,
- immediately run a CHKDSK on any drive configured in your system. For some
- reason, running a CHKDSK avoids problems that occur if you type EXIT in the
- primary environment and then immediately escape to HOT-DOS. This problem has
- not been traced, but seems to be a bug in the DOS EXIT command.
-
-
- To obtain immediate shipment of an authorized copy of ** HOT-DOS ** send
- cashiers check or money order made payable to ROBERT BEST in the amount of
- $20.00 (California residents $21.20 including 6% sales tax) to:
-
- Robert Best
- 13681 Dall Lane
- Santa Ana, CA 92705
-
- Personal checks will be accepted but shipment will be delayed pending the
- clearing of the check.
-
-
- ** HOT-DOS LICENSING AGREEMENT **
-
- The HOT-DOS Demonstration Program is copyrighted material intended for use in
- unaltered form. The user is encouraged to freely distribute the
- Demonstration version of HOT-DOS provided that it has not been altered in any
- way. Distribution of either an original or altered copy of the authorized
- version of HOT-DOS or an altered version of the HOT-DOS Demonstration Program
- is a violation of copyright. The program is provided "AS IS" without any
- warranty of any kind. Should the program prove defective, the user shall
- assume the entire cost of all necessary servicing, repair or correction. Site
- licensing of the authorized version of HOT-DOS is available by arrangement
- with Robert Best. The authorized version of HOT-DOS is intended for use on a
- single machine. Making copies for use on other machines represents a
- violation of this licensing agreement.
-
-
-