Uploaded Thu Feb 19 2026 14:21:02

Aimsat 1.1 computes satellite dish aiming
angles from a list of avaliable satellites.
Tabular data can be saved on a disk file.
Registration is only 10 US$.

Uploaded Thu Feb 19 2026 14:21:02

Astrological research tool ver. 3.0 compares

Uploaded Thu Feb 19 2026 14:21:02

* Astrolog 5.20 is a many featured and
customizable astrology chart calculation
program for DOS, Windows, Mac, and Unix,
used in 25+ countries on six continents.
It is 100% freeware and requires no
registration fee. :) The complete source
code is available. Astrolog features:
wheels, aspects, midpoints, relationship
charts, transits, progressions, some
interpretations, astro-graphy, local
horizon, constellations, planet orbits,
dispositors, various influence charts,
biorhythms, different zodiacs, central
planets, 14 house systems, 8400 year
ephemeris, asteroids, Uranians, fixed
stars, Arabic parts, script files and
macros, interactive PC & MS/X11 Windows
graphics, smooth animation of charts,
graphic files in PostScript, Windows
metafile, and bitmap formats, and more!

Uploaded Thu Feb 19 2026 14:21:02

This is the full source code for the program   
Astrology 5.20 available in "C" allowing analysis, 
modification, and easy porting. 

Uploaded Thu Feb 19 2026 14:21:02

* Astrolog 5.20 is a many featured and
customizable astrology chart calculation
program for DOS, Windows, Mac, and Unix,
used in 25+ countries on six continents.
It is 100% freeware and requires no
registration fee. :) The complete source
code is available. Astrolog features:
wheels, aspects, midpoints, relationship
charts, transits, progressions, some
interpretations, astro-graphy, local
horizon, constellations, planet orbits,
dispositors, various influence charts,
biorhythms, different zodiacs, central
planets, 14 house systems, 8400 year
ephemeris, asteroids, Uranians, fixed
stars, Arabic parts, script files and
macros, interactive PC & MS/X11 Windows
graphics, smooth animation of charts,
graphic files in PostScript, Windows
metafile, and bitmap formats, and more!

Uploaded Thu Feb 19 2026 14:21:02

(v2.0) Bondit - 

Bondit is designed to give the 
introductory chemistry student
practice is doing Lewis electron 
dot formulas for molecules that
follow the octet rule.  After
completing the correct Lewis 
formula a 3-dimensional structure
that can be rotated is presented.

DEMO(US$10 + $2 S and H)
Timothy J. Allen
ALLENT@mail.firn.edu

Uploaded Thu Feb 19 2026 14:21:02

LearnCHEM v2.0 Chemistry Learning Aid for

Uploaded Thu Feb 19 2026 14:21:02

(v1.0) Chmmkr - 

Chmmkr, the chemical synthesizer, is designed
for the introductory chemistry student.  It
provides a graphical animated representation 
of the major types of chemical reactions
giving the student a conceptual view of 
what is going on at the atomic level.
Windows 3.0 and higher.  The unregistered
version contains 2 reactions and the 
registered version 5.

Shareware(US$10 + $2 S and H)
Timothy J. Allen
ALLENT@mail.firn.edu

Uploaded Thu Feb 19 2026 14:21:02

CONVERTER PRO/WIN V1.02 - Professional unit 
converter. User-extendible database includes 
length, area, volume, mass, force, pressure, 
density, energy, power, temperature, dynamic 
viscosity, kinematic viscosity and time 
units. Units can be composed from up to four 
available units (for example BTU, lb. and 
deg. F will give BTU/lb. deg.F). Written by a
professional engineer for other pros.

Uploaded Thu Feb 19 2026 14:21:02

Cogocalc test version 0.70 - utility for

Uploaded Thu Feb 19 2026 14:21:02

DIFFER - This program was written to help
with differentiation. It accepts algebraic
expressions with support for a number of
functions and will differentiate the
expression with respect to x. Written by Paul
Young, using Turbo C++.

Uploaded Thu Feb 19 2026 14:21:02

Elcad 1.0 fast GUI electronic circuits CAD

Uploaded Thu Feb 19 2026 14:21:02

(v2.00) HRCalc - Win Astronomy
Approximates stellar radii given a star's
luminosity and effective temperature.
Useful for amateur astronomers, educators,
and students wishing to gain further 
insight into the Hertzsprung-Russell 
diagram. The program models stellar sizes
in respect to our sun / solar system. 
Shareware (US$ 15.00 Check/Money Order)
David C. Irizarry  xerxees@ix.netcom.com

Uploaded Thu Feb 19 2026 14:21:02

KALKULATOR v1.10 - A powerful sci/eng
calculator for Windows 3.1 and 95. More than
100 functions (stat. distributions, Euler,
conditional, user-defined), function graphs,
statistics (mean, s.d., histograms, poly
regression), column-wise operations on stat
data. Expression evaluation, unit conversion,
phys.constants, save/restore, on-line help.

Uploaded Thu Feb 19 2026 14:21:02

MEASURES v1.1,  Convert 100's of Measurements from U.S. to 
Metric and from U.S. units to other U.S. units.  Convert length,
area, volume, speed, acceleration, temperature, power, density,
pressure, weight, work, time, angles, bits & bytes!  Point and
click operation actually makes measurement conversions fun and 
will save time and brain cramps.  A must have for home, business
and school.  Requires Vbrun300.dll, mouse, Windows 3.1 or Win95.
Shareware $12.00 registration fee.

Uploaded Thu Feb 19 2026 14:21:02

MTRXCALC A Calculator interface to Matrix 
Algebra, including a parser for expressions 
as: inv(A)*(3*B-trans(C)) and buttons for 
solving, factoring, finding eigenvalues and 
eigenvectors, extracting rows and columns, 
concats, elementary row operations, complex 
or real display, norm, determinant, inverse, 
conjugate transpose, condition number, file 
save and print on Windows NT or Windows 95. 
Easy entry on mock spreadsheet like format.

Uploaded Thu Feb 19 2026 14:21:02

MyStars! Ver 2.3 Astronomy, planetarium 
for Windows. View the stars, planets, COMETS,
Messier objects to scale as seen from any
place on earth any date/time. Now with: Help,
images, Zoom In/Out, Object tracking and
Animation. Star & Constel. Names, Alt/Azi,
Rta/Dec, ELatLng lines. StatusBar. FULLSCREEN
Scientific, Educational. Min Reqd: 386,
Win 3.1, no copro reqd. Shareware: reg. $12
Runs great on Win 3.x, 95 and Win NT too!

Uploaded Thu Feb 19 2026 14:21:02

(v1.0) Nuclear - 
Designed for the introductory
chemistry or physics student, this 
is a tutorial in nuclear chemistry/
physics.  The program contains
a number of animated sequences 
designed to help in the understanding
of the concepts presented. Included
are sections on radioacitve decay,
half-life, nuclear reactions, nuclear
fission, and nuclear fusion.  This is
a Windows program.

Shareware(US$10 + $2 S and H)
Timothy J. Allen
ALLENT@mail.firn.edu

Uploaded Thu Feb 19 2026 14:21:02

Atomic Number And Masses of The Elements in A

Uploaded Thu Feb 19 2026 14:21:02

 - Shopcost 2.0 - 
 Shows machine capacity with 3D bar graphs.
 Computes the min/max. performance of turning
 and milling machines using a power constant.
 Shows metal removal rates in cubic inches per 
 minute, and displays the time needed to machine 
 a single part using a piechart. Calculates the 
 weight, volume and price of raw materials in 
 metric or english. Needs DOS, 80286 or better 
 and EGA/VGA. This file replaces shpcs1cd.zip. 

Uploaded Thu Feb 19 2026 14:21:02

STSORBIT PLUS Version 9615: Track and display
any satellite for which orbital data is avail-
able. Used by NASA and the aerospace industry
as well as hams and "just plain folks" around
the world. Math coprocessor chip recommended.
Now includes Multi-Satellite Tracking Feature.
By: Dave Ransom, 7130 Avenia Altisima, Rancho
Palos Verdes, CA  90275  USA.

Uploaded Thu Feb 19 2026 14:21:02

Universe simulation program in EGA. Can do
slide show of generations.  Many  Options.

Uploaded Thu Feb 19 2026 14:21:02

Mathomatic V6.3: Symbolic math program.
This program can automatically
solve, simplify, combine, and graph
algebraic equations, etc.  Does
calculus operations, too.  Runs
under MS-DOS or Windows.

Uploaded Thu Feb 19 2026 14:21:02

TEMPERTR - a program to convert
between the three widely used
temperature scales. requires an
$8 registration. see register.doc
for more info.

Uploaded Thu Feb 19 2026 14:21:02

ULTIMATE CALCULATOR v3.0c Graphic scientific
calculator. Expression evaluator with many
built-in functions, operators, numerical
notations, and modes. User variables &
functions. Solves, and plots equations, does
integrations and summations. Supports hex &
binary notations. Radian & degree modes.
Resizable TSR window. 18 significant digits.
Mouse support. Online help and much more.