THE WARREN ASTRONOMICAL SOCIETY, INC. Page 1/11 COMPUTER GROUP ASTRONOMICAL SHAREWARE PROGRAM LIST (February 24, 2002) The following programs are available from the WAS computer sub- group. This list represents the best astronomical programs available in shareware. Contact Larry Kalinowski at 15674 Flanagan, Roseville, MI 48066 (Tel:586-776-9720) for further information about programs, program operation or the computer group. Prices per disk are $2.00, postpaid. Programs are mailed on 3 1/2" diskettes, unless you specify another format. IBM and compatibles, only. CD-ROM disks are $4.00 ea. PLANETARIUM PROGRAMS ******************** EARTH CENTERED UNIVERSE - V1.3 This planetarium program has a little more pazazz than Skyglobe because it runs in Windows. Mouse operated, the skycharts flash to the screen pretty fast. Plenty of options. The stellar magnitude limit is 10.0 but that magnitude will only show during a zoomed view. Comet positions will be shown if latest orbital elements are entered (see ASTRO CHATTER in the W.A.S. newsletter for comet orbital element updates). (Win 3.1 or higher). MEGASTAR DEMO - V4.0 (On CD-ROM only - $4.00) ******* This version of Megastar contains all the basic functions of the NEW planetarium such as pop-up windows for deep space objects. PROGRAM You can zoom, set magnitudes, telescope, finder and eyepiece ******* fields. It does not contain all the large catalogs like the full version does. (Win 95 or higher). SKYGLOBE - V3.6 Probably the most popular astronomical, shareware, planetarium program in the world. Colorful, with a multitude of features and extra-fast plotting. Twenty-nine thousand stars to seventh magnitude. Shows Messiers, NGC's, planets, constellation lines, boundries, twilight, Milky Way, with easy-to-find menus, mouse or keyboard. Press F1 & F2 for operating instructions. (H, CGA, MCGA, EGA, VGA or SVGA). (DOS, Win 3.1 or higher). SKYMAP - V2.2 Another planetarium program with easy to operate icons. This program offers excellent printing at high resolution for people who would like to take their map to the telescope. A comet position feature is avaialable if you enter the updated orbital elements (see ASTRO CHATTER in the W.A.S. club newsletter for comet orbital element updates) (Windows 3.1 or higher). ******* SKYMAP PRO - V7.0 DEMO (on CD-ROM only - $4.00) NEW This version of the above program is so large, it had to be put PROGRAM on a CD-ROM disk. Many new features. (Windows 95 or higher). ******* STARVIEW - V2.0.08 Still another planetarium program. This one doesn't have as many features as Skyglobe but uses a sliding knob type of feature to change the sky position, magnitude, direction and field of view. (DOS). THE WARREN ASTRONOMICAL SOCIETY, INC. Page 2/11 ASTRONOMICAL SHAREWARE PROGRAM LIST VGASTARS - V8911 A simpler planetarium program that is easier to operate than most. Only goes to 6th magnitude, however, this program might appeal to youngsters because of its ease of operation. When a constellation is picked, it is presented in another color. Pan left, right, up or down. Zoom in and out. Cursor will show star's name when the mouse is clicked. Can be run from the A: drive. Press F1 for operating instructions. (DOS). VOYAGER III DEMO - V3.23 (on CD-ROM only - $4.00) ******* This is a new planetarium program offered by Carinasoft. It NEW features pop-up information when you click on an object and PROGRAM asteroid, comet, deep sky and satellite location. (Windows ******* 95 or higher). TELESCOPE VIEWING AIDS ********************** CONSTELLATION GUIDE - V2.0 Learn the constellations, month by month, with tips on locating and naming the brighter stars. Slide show format, twenty-four northern hemisphere constellations. Self running mode for shows and demo's. Can be run from the A: drive. VGA only. (DOS, Win 3.1 or higher). DEEP SKY 2000 - V1.1 (On CD-ROM only - $4.00) Even though this could be considered a planetarium type program, ******* it's made more for the advanced amateur that wants to be able to PRICE locate deep space objects and already understands coordinate REDUCED systems. Three views show a large scale map, a finder view and a ******* telescope view. The finder and telescope views are brought up by clicking your right mouse button when the cursor is near your object on the map. A left click shows statistical data. You can reverse the finder and 'scope views, left, right, up or down, as well as change the field of view. It takes 15 Mb to store the program. VGA. (DOS, Win 3.1 or higher). DEEP SPACE - V5.5 David Chandler's popular comet and asteroid ephemeris program. It'll draw a map scaled to your specification after the ephemeris is created, with a cross mark for each date calculated. A data base of periodic comets and the first 100 asteroids are provided, along with orbital parameters. You must provide the latest orbit parameters for the newest comets. Many more features like preparing observing lists and charts (in 2-D or 3-D stereo), finding lost comets, and logging observing data. New items are; color charts, finder and eyepiece circle drawing. This shareware version doesn't support dot matrix printers (earlier versions do) but it has laser printer support. Desktop cartography for the serious observer. CGA, EGA and VGA. (DOS, Win 95 or higher.). THE WARREN ASTRONOMICAL SOCIETY, INC. Page 3/11 Ò ASTRONOMICAL SHAREWARE PROGRAM LIST dOBJECTS - V2.4 (three disks - $6.00) This is a new program by Jeff Bondono that is designed to aid the observer. The program features a searching database of 34,000 objects that has the capability of linking to any astronomy program, pictures and the Internet. Enter any parameter like a common name, NGC number, M number or even part of a name and a list of posibilities will appear. You can even record your observations and search past observing notes to bring back old notes for examination. Add more objects to the database to keep your list constantly growing. An added feature is reference material from the past twenty years of ASTRONOMY, SKY and TEL and THE SKY, all searchable by a word or part of a name. This is a must have program for serious observers. (Win 95 or higher). EPHEMERIS - V1.0 This program was written by Ray Travis of the WAS. It calculates ******* an ephemeris for comets when you provide orbital elements for them NEW through the keyboard. You can specify how often to calculate a PROGRAM line of positional data, every day or every five days and how many ******* days of data to calculate. (DOS). GALSAT - V5.3 A Jupiter satellite position program showing only the four Galilean moons. The default date is the computer date. You can change the date or speed up the real time graphic that shows the moon's positions, occultaions and transits. A seven day sinewave (Sky and Tel type graph) chart is also shown. (DOS, Win 95 or higher). INSTANT TRACK - V1.0 A satellite tracking program. You can use it to determine when a satellite will appear over your location. It displays (in real time) a NASA (Mercator) type wall map, or globe, showing where the satellite and observing station, you picked, is located. Various data is constantly updated at the bottom of the screen like altitude, azimuth, slant range, and even the length of time to the next appearence over your horizon. A database of old satellites is available, including the Russian And International Spacestation. New orbit data (available from the WAS, NASA, and some other sources on the Internet) must be entered to be accurate. (DOS, Win 3.1 or higher). IRIDFLAR - V1.0 This is a special satellite tracking program designed to help locate the IRIDIUM satellites. These satellites flare up to minus eighth magnitude under certain conditions. You must use the latest .TLE (two line element) file of orbit information to see these satellites. The .TLE files are available on the Internet, from NASA or various club members. See ORBITS.TLE in the miscellaneous section, below. (DOS). JMOONS - V1.0 Jupiter's four main moons, for any date and time selected. The default date and time is the computer's present clock reading. Real time operation continually updates the moons positions. A three day or fifteen day, sine wave graph is also generated. (DOS). THE WARREN ASTRONOMICAL SOCIETY, INC. Page 4/11 ASTRONOMICAL SHAREWARE PROGRAM LIST JUPE - V2.0 Not only are the positions of Jupiter's major moons shown for the present date but the central meridian (longitude line facing Earth) of system one and two are given. It also graphically shows the major belt zones across the planet and how they are identified. The Red Spot is shown, (when it's in view). Press any function key to see the Red Spot and satellite positions. VGA required. (DOS). JUPSAT - V2.1 Another Jupiter satellite program showing the Jovian moons. You can display the planet and moons in binocular, telescope, telescope with diagonal or other mode. Views from the side or from above the planet are shown with options to animate satellite movement. Transits and occultations are indicated, as well as being able to produce a SKY & TEL type sine wave plot of the moons for any number of days from one to thirty-two. Alt-X returns the user to DOS mode. Zoom in or out in the side view with your numeric keypad. (DOS). KOMSOFT - V3.1 You can enter comet orbital elements in this program, have the comet positions calculated and then printed in tabular form. It also converts the orbit data into a form that can be read by other planetarium programs like DANCE, ECU and SKYMAP, so that you can plot the position of the comet. (DOS). LUNAR ECLIPSE - V2.0 A co-processor mode has been added. Watch past and future lunar eclipses, umbral and penumbral, between the years 1800 and 2300, in animation mode, with a display that shows the time for beginning, mid and end of eclipse. Any location can be used. (DOS, Win 95). MARS - V2.3 Primarily designed for views of Mars as seen in a small telescope, this program identifies and graphically displays the central meridian (longitude line facing Earth) and major surface features of Mars, in a global and Mercator format, for the present date. The global view can be tilted to show either north or south pole. A small window shows the present visual size compared to the maximum and minimum size. An added feature is a drop down window listing the Jupiter central meridians for system one and two. (Windows 3.1 or higher). MARS EXPLORER - V1.2 One of the best Mars programs I've seen. By Virtual Reality Labs, it shows features based on maps made by NASA space probes. Mercator projection allows you to pick a crater or mountain with the cursor, then clicking your mouse, the name and coordinates of the feature appears on the screen. A very realistic globe, displays an almost 3 dimensional stereo effect. Used with the MARS program above, they form a great Mars observing package. Pkunzip is included on the disk. VGA required. (DOS, Win 95 or above). THE WARREN ASTRONOMICAL SOCIETY, INC. Page 5/11 ASTRONOMICAL SHAREWARE PROGRAM LIST MARS PREVIEWER II Another program for Mars lovers. It shows prominent features that can be seen by small telescopes. Your cursor reveals the names of those features. A mars graphic shows its phase for any date and a data window reveals the size, distance and longitude facing Earth. You can reverse the graphic in the north, south, east or west views and change from color to black and white. (DOS, win 95 or higher.) MESSIER OBSERVER'S GUIDE - V2.0 The first fifty Messier objects shown graphically, just as an amateur would see them through a four to six inch telescope. Shows location within the constellation along with statistical information. Slide show format, self running mode. VGA only. (DOS, Win 3.1 or higher). MOONCALC - V5.2 Everything you want to know about the Moon. Rising, setting, eclipses, phases, even when and where to view the thinist crescents from your area. See Sky And Telescope, page 70, September, 2000. (DOS, Win 95 or higher). MOON MANAGER - V1.0 This program can be used to identify 659 lunar features (craters, mountains, landing sites, etc.,) and it'll give you additional information about size and location by lunar coordinates. The phase is correct for the default date or any date entered. (DOS). PLANETARIUM - V6.5 Planet positions can be displayed in three different modes with this program. In a horizon type plot, (you can change the shape of the horizon to match your own observing site) a celestial equator plot, or a heliocentric (Sun centered) plot. No stars or constellations are shown. You can watch planet positions change daily or hourly using the arrow keys on the keyboard. The best feature of this disk is Jupiter's moons with occultations and shadows on Jupe's surface. (DOS). PLANETWATCH - V2.1c This program is basically another planet position program but has constellations shown in its celestial equator plot. There's no horizon type plot available. Photo's of all the planets are included along with a heliocentric (Sun centered) plot of inner and outer planets, and an ephemeris giving RA, Dec, Distance from the Sun, and present magnitude. An animation mode allows the user to view each plot in motion, the time interval set by you. Pkunzip is included with this program. (Win 3.1 or higher). THE WARREN ASTRONOMICAL SOCIETY, INC. Page 6/11 ASTRONOMICAL SHAREWARE PROGRAM LIST SATELLITES OF SATURN - V2.0 Saturn's eight largest satellites are shown in two views for any date that you choose. You can animate the display and color code each moon for easy identification. The tilt of the rings are adjusted to coincide with the date you entered. The default is the present date. You can also reverse your view, left, right, up or down, to match your telescope view and zoom in or out. (DOS). SATELLITE TRACKER - V1.1.5 Tracking satellites with your Meade LX200 is supposed to be easy with this program. It interfaces to the telescope and automatically follows the satellite, that you choose from an included list, across the sky. See Sky And Tel, issue Sept. 2000, page 76 for more information. (Windows 95 or higher). SIDEREAL - V1.0 ******* If you'd like to convert local time to sidereal time or Julian NEW date and vice-versa, this small text program will handle the job PROGRAM quickly. Just the thing for your observational records, because ******* some reporting stations require converting local time to those other forms. (DOS, Win 95 or higher). SIMON - V1.0 This fine program simulates the occultation of a star after you ******* set the ingress position of the star and the phase of the moon. NEW You can enlarge the Moon to fill the screen and change the sky PROGRAM brightness to match observing conditions for the next occultation. ******* It'll also let you practice timing the occultaion and recording your response time. (DOS, Win 95 or higher). SOLAR ECLIPSE - V1.3 This program graphically plots the sunrise, sunset, partial and totality bands of 180 solar eclipses, from 1951 thru 2032, on a Mercator projected Earth map. Other statistical information is also presented. An eclipse animation will display if your chosen observing site is in the partial or totality phase area. (DOS). TUMOL (The Ultimate Messier Observers Log) - (On CD-ROM only - $4.00) This is a large utility program to help Messier observers find those objects and keep an on-going log of observing notes. The database contains all pertinent data to find them plus a library of pictures. You can sort the Messier list according to month, number, constellation, season and contest form. (Win 3.1 or higher). WIMP - V3.9 This disc contains a series of small programs developed by the ALPO (Association of Lunar and Planetary Observers). It contains observing data for the Moon, Mars, Jupiter, Saturn and the Sun, such as, location, central meridians, rising, setting, lunar phases, Jupiter satellite positions and more. (Windows 95 or higher). THE WARREN ASTRONOMICAL SOCIETY, INC. Page 7/11 ASTRONOMICAL SHAREWARE PROGRAM LIST TELESCOPE DESIGN AIDS ********************* ABERRATOR - V2.0 After inputing your telescopes parameters, this program will give you some idea what to expect performancewise from your instrumemnt. It'll graphically show you the resolution you should expect based on diagonal obstruction and known optical aberrations. (Windows 95 and higher). EYEPIECE L.E. - V2.7 This program is designed to help you choose the type of eyepiece you would like to have in your telescope and also contains a Messier catalog with observing and photographic tips. You can choose your eyepiece by magnification, real field of view, apparent field of view, exit pupil or type of construction. Choose it based on any of those parameters and the others will be calculated for you. It also contains observing hints and tips for the type of sky you are observing under. Filters are discussed. (DOS).* FLEX - V1.0 Design your own mirror cell that is capable of flexing your telescope mirror into a diffraction limited optic. See the November, 2000 issue of Sky And Telescope. The program was written by the author of the article. (Dos or Windows 3.1 or better).* FOCAULT - V1.0 This program first appeared in SKY & TELESCOPE in February, 1990, page 195. It's designed to help the amateur mirror maker get the correct parabolic curve on his mirror. The amount of error in the mirror surface is plotted after knife edge positions are input by the user. The wave front error is also calculated. Jeff Bondono has converted this program into an IBM executable file. (DOS, Win 3.1 or higher).* LUMIDEMO - V1.02 You can use this program to select eyepieces if you're looking for a certain exit pupil, field of view or magnification. This program was created by Lumicon and uses its eyepiece database as the source for your answer. It also specifies which filter, pollution or nebular, to be used for your viewing pleasure. (DOS). NEWT - V2.0 Check out the basic design of your Newtonian reflector with this program. After entering mirror size, focal length and other parameters, the program will graphically tell you if the diaganol and eyepiece holder is the proper size, as well as other design elements. (DOS, Win 3.1 or higher). OPTIMAX - V3.2 This is a program to help telescope builders determin what size diagonal is required for their newtonian telescope. You must enter your telescope's parameters, such as, F ratio, image size, mirror diameter and expected image to diagonal distance. (Win 3.1 or higher). THE WARREN ASTRONOMICAL SOCIETY, INC. Page 8/11 ASTRONOMICAL SHAREWARE PROGRAM LIST RONWIN - V2.0 This mirror testing program shows you what your mirror should look like, with a Ronchi type of grating, after you reach the spherical or paraboloid stage. You must enter focal length, mirror diameter and grating position. (Win 95 or higher). TEX - V2.3 Another Focault mirror testing program based on Jean Texereau's book and testing method. The mirror's parameters and zonal values can be stored and retrived at will. Graphics show your mirror's fit within the 1/4 wave wavefront envelope and calculates the wavefront error. (DOS Win 3.1 or higher.). EDUCATIONAL *********** ASTRO-MANIA - V1.5 This is another quiz type program designed to teach you about basic and advanced astronomy. You can choose just the solar system or the entire universe as your quiz. You can even choose how to conduct the I.Q. test that goes along with it. The program PKZIP is included on the disk. (Windows 95 or higher). ASTRONOMICAL .PCX FILES - VOL.1 This disk contains .PCX graphic files of the most popular astronomical subjects like the Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, LMC, M1, M5, M8, M13, M15, M16, M17, M20, M27, M31, M42, M45, M51, M57, M66, M83, M104, M106, NGC 2024, 2264, 4565, 4603, 4631, 4755, 5128, 6946, 6960 and 7217. All are suitable for viewing with the Skyglobe, V3.5+ planetarium program or by using the SVGA graphics viewing program (VUEPRO) listed in the graphic aid section. Your computer must be capable of showing SVGA graphics. The files on this disk are compressed. The program PKUNZIP, for uncompressing, is included. (DOS). ASTRONOMY EXPOSURE GUIDE - V1.0 This is an all text program that is quite comprehensive in exposure calculations for film. It covers many aspects of photography like telephoto and through-the-telescope photographic methods. Films with ISO ranges of 64 to 3,200 are available, as well as hypersensitized film, for computation. Many tips are given concerning long exposure, guided photography. A small glossary of astrophotographic terms is included. (DOS, Win 95 or higher). ASTRONOMY QUIZ - V1.0 A multiple choice quiz on general astronomy covering historical names, the solar system and cosmology. About 50 questions, multiple choice, with scoring. (DOS). THE WARREN ASTRONOMICAL SOCIETY, INC. Page 9/11 ASTRONOMICAL SHAREWARE PROGRAM LIST BINARY - V3.0 This is a short, interesting, graphical program that demonstates how the unusual light curve of an eclipsing binary star system is produced. You can change the brightness, mass, size, eccentricity and orbital tilt of the stars to see how the light curve is affected. VGA required. (DOS, Win 95 or higher). B_STAR - V1.0 A program that draws the shape of a binary star's orbit around the primary star. You must enter the elements such as, orbital inclination, period in years, periastron year, first and last year to plot, semi-major axis length in arcseconds, etc. (DOS). C.A.A.S. SKY GUIDE - V1.0 This program was written by the Central Arkansas Astronomical Society. It's a comprehensive program involving stars, constella- tions and deepsky objects. Designed to help the novice and the advanced amateur learn their way around the sky, it presents observational astronomy in a graphical quiz format. (Win 3.1 or higher). CIRCUMSPACE - V1.0 Created by the author of SKYGLOBE, Mark Haney puts his star map to a really different use. You can play Captain Kirk and travel to 7700 stars neighboring our Sun. Watch the star patterns change as you approach each new stellar destination at warp speed. (DOS). HALE-BOPP PHOTOS (.JPG FILES) - VOL 1 Downloaded off the Internet, these thirty photos show the way the comet appeared around the world, as it was captured on film and CCD cameras by various observers. If you have a picture quality printer, you can make some stunning prints from these files. H-R CALC - V2.0 This program familiarizes the student with the H-R diagram. It shows the stellar relationships of mass, luminosity and spectral classification, and does it all with a mouse cursor that you can move anywhere on the H-R diagram. Special windows show comparable graphics of the Sun's diameter to any star you simulate, as well as temperature and spectral class. (Win 95 or higher). HUBBLE SPACE TELESCOPE (COMET COLLISION) .GIF FILES - VOL 1 This disk contains eleven photos of the Jupiter-SL9 encounter of July, 1994. These are the best of the Hubble group, down- loaded from the Internet. You need a SVGA viewer program and monitor to view these pictures. (DOS, Win 3.1 or higher). (See graphic aid programs below). ORBITS3D - V1.0 This program simulates the orbits of some of the planets and five popular comets. Halley, Encke, Swift-Tuttle, Hyakutake and Hale- Bopp must be viewed in 3-D, with red and blue or red and green glasses that are typically used with 3-D movies and books. You can control the speed and orbital tilt, as well as the depth of perception, with your keyboard. (3-D glasses not included). (DOS). THE WARREN ASTRONOMICAL SOCIETY, INC. Page 10/11 ASTRONOMICAL SHAREWARE PROGRAM LIST OUR COSMOHOOD - V2.03 See the universe and it's filamentary structure with this program. Twenty-two hundred galaxies are plotted and you control how to view them or set the program into a self running display. Colors are used to identify each association of galaxies so that you can become familiar with your cosmic neighborhood. (Win 95 or higher). PCSPACE - V1.0 This is another planetarium-space travel type of program similar to Circumspace but with windows-like graphics. You can choose to leave the constellation lines on or off, as you travel through deep space. The screen text is all Finnish, so you're on your own running this program (see the file FINHELP.BAT for some word translations). The primary options are traveling to another star (left mouse button) and surveying the surrounding constellations or stepping back from the star you've chosen (right mouse button) and watching how its own constellation changes shape as you travel around it. A list of stars, arranged in order of distance, is provided. (DOS). PROJECT C.L.E.A. - V1.0 This disk features three different laboratory excercises in astronomy involving stellar spectra, Jupiter's moons and photometry. You will be an astronomy student that must go through the motions of choosing, obtaining a telescope and making measurements. Very good observatory simulation. A VGA monitor is required. SVGA is recommended. (Windows 3.1 or higher). RECREATIONAL ************ GALAXY COLLISIONS - V1.0 This program demonstrates the interaction of two galaxies. You can design the main galaxy to have as many stars as you want. The intruder galaxy is represented by one point, but you can design more mass in that galaxy, if you wish. The program steps through and each step shows how stars are displaced in the main galaxy as the intruder passes by or through. You can also choose random galaxy designs. Save your most interesting designs, and run them in fast mode. (DOS). GRAPHIC AIDS ************ ASTROART DEMO - V1.0 ******* This is an image enhancing program for the .fit or .fits type of NEW images. This type of image is usually preferred by professionals PROGRAM in the astronomy field. You can download raw astronomy images from ******* NASA or observatories around the world and enhance them to find new details. (Win 95 or higher). THE WARREN ASTRONOMICAL SOCIETY, INC. Page 11/11 ASTRONOMICAL SHAREWARE PROGRAM LIST ASTROSTACK - V0.9 This new CCD graphics manipulation program is made specifically for video camera picture enhancement. However, you can use it to simulate multiple .BMP frame grabbing, by telling the program to use a number of still pictures to stack, align and calibrate, causing the program to combine the pictures and enhance details. A video capture card or video frame grabbing software is required. (Win 95 or higher). CCD - V1.0 (On CD-ROM only - $4.00) This is a utility program from The Astronomical Society of Southern New England. It helps determine just how big your subject will appear on your CCD chip. You must enter data such as the focal length of your 'scope, eyepiece, Barlow mag., subject and method of capture, such as prime focus or projection. Enter your chip name and see whether your subject will fit your chip size. (Win 95 or higher). FITSVIEWER - V1.0 If you're graphics viewer won't read and show you those CCD pictures (.fit & .fts) made by professional astronomers, then this is the program to use. The program was zipped to make it fit on a floppy disk. PKUNZIP.EXE is included to help you expand the program to it's original size or use WINZIP. (Win 95 or higher). VUEPRO - V5.0 This disk contains a graphics viewing program that can be used to display Super VGA pictures (up to 1024 x 768 pixels with millions of colors) on your monitor. It can zoom, crop and print and will read .PCX,.GIF,.TIF or .JPG files. Your monitor must be capable of handling SVGA graphics. (Win 3.1 or higher). MISCELLANEOUS ************* ORBITS.TLE This disk contains the .TLE (two line element) file required to use the IRIDFLAR program. It may not contain the very latest orbit data but will put you "in the ballpark" for those satellites. **************** NOTE: If you have a WINDOWS 95, 98, 2000, or ME operating system, you're probably concerned about whether DOS or older Windows programs will run on your system. Usually they do, however, there is always the exception. DOS programs must be installed into Windows manually. Your Windows manual explains how it's done. Most Windows 3.1 programs will load into higher Windows automatically, if there's a setup or install program on the disk. NOTE #2: The term "shareware" does not mean public domain. These disks are sample versions of programs that run for a limited time or may not contain the entire program. A better name would have been "tryware". They are fully copyrighted and cannot be modified. They provide a try-me-out opportunity for very low cost. Unrestricted or full operating versions must be ordered from the author. Read the author information files on the disk, usually labled README.DOC, README.1ST, README.COM or README.EXE.