Dec 102017
TimeRun is a memory resident program which causes execution of one to ten DOS commands at some specified time in the future.
File TIMERUN3.ZIP from The Programmer’s Corner in
Category Utilities for DOS and Windows Machines
TimeRun is a memory resident program which causes execution of one to ten DOS commands at some specified time in the future.
File Name File Size Zip Size Zip Type
TR.DOC 12206 4581 deflated
TR.EXE 7239 4607 deflated

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Contents of the TR.DOC file

TimeRun (c) Command Execution Facility, TR.EXE
Version 3.0 September 22, 1989
Copyright (C) 1987, 1988, 1989 Henry C. Clark


This program is NOT free. It is copyrighted and protected under
the laws of the State of Texas.

My time, my computers, my compilers and my function libraries are not
free either. The TimeRun (c) Command Execution Facility, Version 3.0,
may be distributed freely under the following guidelines ONLY :
1) you do not alter the program
2) you do not receive money for anything related to the program
NOT EVEN THE DISKETTE ( they're so cheap nowadays )

If you personally are going to use TR.EXE, the TimeRun program,
please send a license fee of U.S. 20 Dollars along with the
registration form below to :

Software Mechanics, TimeRun
P.O. Box 832052
Richardson, TX 75083

You MUST register and pay the license fee if you use this program in
a commercial environment or governmental organization. Site licenses
are available; refer to the registration form at the end of this


------ Table of Contents

TimeRun (c) Command Execution Facility, TR.EXE
Version 3.0 September 22, 1989
Copyright (C) 1987, 1988, 1989 Henry C. Clark

3.0 USING TimeRun


TimeRun ( the program TR.EXE ) is a memory resident program which
causes execution of one to ten DOS commands at some specified time
in the future.

A good example of it's use can be found in a communications network
monitor which runs on a PC. The network requires monitoring between
7:00 AM and 19:00 ( 7 PM ), the monitor program being a PC based

TimeRun is used to start the monitor program at 7:00:00, and end the
program at 19:0:0, and also to perform some housekeeping on the PC at

TimeRun will monitor up to ten target times, and is compatible with
all programs which use the DOS keystroke functions to get command

Besides time of day operation, TimeRun will execute commands at
specified intervals, and do so once or continuously.


TimeRun is NOT copy protected. Simply copy the TR.EXE file onto
your normal work disk. You run TR.EXE just like any other DOS command.

TimeRun Version 3.0 requires approximately 10 kilobytes of memory as
a resident program. When you install more than one target command,
a second copy of TimeRun modifies the first and then exits.

------ 3.0 USING TimeRun

You run TR.EXE just like any other DOS command. TimeRun requires
parameters which are described in the following section.

TimeRun will always display an identifier message, and a result
message based on it's ability to perform your request.

In general, the keyword "successfully" is used in a result message
to mean that TimeRun has done something, as opposed to doing

TimeRun may be called from with batch files. TimeRun returns with
ErrorLevel = 0 upon successful operation, and ErrorLevel = 1 when it
has not performed anything.


TimeRun Version 3.0 has four parameter formats, three to install target
commands, and another to request that TimeRun be removed from

The general format of the target command installation command is :

TR hh:mm:ss command [n,c]

The target time field, 'hh:mm:ss', is composed of a one or two digit
hour ( 00 through 23 ) and a one or two digit minute ( 00 through 59
) and a one or two digit second separated by colons ( : ). You may
install more than one command using the same target time, and they
will be executed in succession in the order installed.

The target command field, 'command', is any string up to 12
characters in length. The command field may be a single word or
several words enclosed in quotes ( "command parm" ). If the command you
require is longer than 12 characters, use a batch file or similar
mechanism. If you use "" with nothing inside, TimeRun simply
executes an key press.

Two options are available which modify the calculation of the target
time for a command. Either option may be specified, but not both (
only the first will take affect ). When using an option, the time
field becomes an increment, not a time of day.


The 'n' option causes the time field, 'hh:mm:ss', to become an
INCREMENT value from the current time. For example, suppose it is
exactly 8:00:00 when you enter the command :

TR 0:1:0 dir n

TimeRun will execute the 'dir' command in exactly one minute, at
8:01:00. Read the 'n' as 'IN', as in : execute a command IN so many
hours, minutes and seconds".


The 'c' option also causes the time field to become an INCREMENT
value, but each time the command is executed, a new target is
calculated using the same INCREMENT time value. For example, suppose
you enter the command :

TR 0:1:0 "" c

TimeRun will execute an in one minute, and once each minute
after that, until TimeRun is removed from memory. Unlike the 'n'
option, which only installs a command to run once per day, the 'c'
option provides a way to execute commands continuously at a given
interval. Read the 'c' as 'CONTINUOUS', as in : execute a command

A time field value of 00:00:00 ( or 0:0:0 ) will mean midnight
execution with no options, immediate execution of the command using
the 'n' option, and is an illegal time value for the 'c' option.

The format of the TimeRun remove from memory command is :

TR -

Simply use the minus character ( - ), and TimeRun is removed from
memory, which implies that no targeted commands will be executed.

If you have installed memory resident programs after TimeRun,
removing TimeRun first will leave a hole in your memory map.
( So don't do that, remove them in reverse order ! )

Using the network monitor example from the introduction section,
the following commands are used in the autoexec.bat file for the
PC :

TR 07:00:00 nminit
TR 19:00:00 "end netmon"
TR 19:05:00 nmclean

The command 'nminit' and 'nmclean' are batch files; 'end nm' is a
command to the network monitor program. Note that these time values
will remain in effect for every day, until the PC is powered off
or TR is removed from memory.

Another example is the keep-alive for a communications program.
Using the command :

TR 0:1:0 "" c

before executing your communications program will generally cause
the sending of an to the host computer.


The following messages imply that TimeRun has performed some
useful function :

TimeRun successfully installed. : TR resident and first target
TimeRun successfully added target.: second through tenth target
TimeRun successfully removed. : '-' option, TR deinstalled

The following message is output when TimeRun is NOT called with
the proper number or type of parameters. Issuing the command TR
with no parameters will generate this text as a help message :

TR hh:mm:ss command [n,c] installs a target command.

hh hours, mm minutes, ss seconds must be specified.
options : n is increment time, c is continuous increment.

TR - removes TimeRun from memory.

The following messages are TimeRun error reports and are self
explanatory :

Use 00 through 23 for hour value.
Separate hour from minute with a colon ':'.
Use 00 through 59 for minute value.
Separate minute from second with a colon ':'.
Use 00 through 59 for second value.
Unrecognized option.
Can't specify continuous increment of 00:00:00.
Max command length is 12 characters.
Target slots exceed 10 entries.
Can't install timer vector.
No copy of TimeRun to remove.
Can't remove TimeRun.

The following messages are run time errors, for which there are
several causes, not to mention a bug in TimeRun. Over one hundred
tests have been performed with TimeRun, but your computer may be
different. Be very careful when you see a message such as :

Null pointer assignment.
Stack overflow.


TimeRun uses a technique called 'keyboard buffer stuffing' to send
the target commands to DOS for interpretation and execution. This
method implies that programs which do not use the standard DOS
key buffer character input functions will not receive commands.
There were several applications programs that were not compatible,
or which affected a delay in the TimeRun commands in previous
versions of TimeRun. I know of none at this time. Send me a note
if you run across one.

Further, because earlier versions of TimeRun were developed under
earlier versions of DOS, this latest version may not be compatible
with your system.

Version 3.0 of TimeRun works for MS-DOS 3.31.

A keyboard enhancement program, such as CED, will receive target
commands correctly, and TimeRun can issue a CED synonym.

TimeRun can call itself as long as the command is 12 characters or
less ( which leaves little room for a command ) :

TR 10:00:00 "TR 1:0:0 m c"

This is a way to place your continuous target commands on a 'even'
time boundary. Don't try to run a TimeRun command continuously
because you will quickly run out of target slots.

TimeRun will not correctly execute special keystrokes, such as alt-
or cntl- keys. TimeRun is limited to pure character strings.

------ 4.0 THE TimeRun PROJECT

Version 1.0 - compiled with Microsoft C version 4.0 using Blaise C-Tools+
3.0, small model.

TimeRun is written entirely in C ( well, i didn't care to look at
any library source code, thank you ) and suffers from extreme
resident size because of the ordering of CODE and DATA segments by
the compiler and libraries.

Version 2.0 - added time increment and continuous options, used
Microsoft Asesmbler 4.0 to :
a. remove dead code after exit calls
b. use int 21 string output macro instead of puts()
NOTE to programmers : this saved 3000 bytes.
c. replaced far memory library routines with ASM language code

Well, the result is two added features and a 6000 byte memory savings!

Version 3.0 - removed system idle checks to allow operation under
DOS 3.3. Hopefully, all those folks who were trying to use the old
DOS 2.1 version will be statisfied.

Future : It occurs to me that several new assembly language
techniques can be used to further reduce the size of TimeRun in

TimeRun Command Execution Facility
Registration Form and Payment Invoice


Name _______________________________________

Address _______________________________________



Phone _______________________________________

Version ________________ Date Received ________________

( ) Enclosed is U.S. ____________ Dollars for ___________ copies

of the TimeRun Command Execution Facility at

U.S. 20 Dollars each.

( ) Enclosed is U.S. ____________ Dollars for ___________ copies

of customized TimeRun Command Execution Facility at

U.S. 50 Dollars each.

Enter customization parameters : ___________________________


( ) Enclosed is U.S. 1000 Dollars for 50 or more copies

of the TimeRun Command Execution Facility, site license.

Send this form with check or money order to :

Software Mechanics, TimeRun
P.O. Box 832052
Richardson, TX 75083


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