Software does planetary calculations in Tropical or Sidereal zodiac and seven house systems for 8,000 years. Includes Yellow Book Atlas with coordinates and time zone histories back to WW II for 250 countries and 9,000 cities. Future time zone changes can be automatically incorporated through a menu selection for Internet download. Without having a time changes atlas such as the Yellow Book Atlas provides, the astrologer can guess wrong what time zone a city observed in the past, including daylight saving, which will make a subject's astrology chart incorrect. There are interactive maps of the World, U.S., and Europe.

Users can save calculated birth charts for review, change, or comparison with other charts. Users can easily look at their current transits or examine astrological compatibility between people's charts through the synastry aspects between them. The program includes the minor planet Chiron and the moon's true nodes. The program displays two types of graphic wheels, a classic wheel and one showing interactive aspect lines as well as aspect patterns, which the program will detect and display. Astrology for Windows includes calculation of solar and lunar returns, transits lists, and composite charts, including a chart for two people and the triad chart with one's parents, which acts like a second birth chart that can say for what purpose the child was born.

It comes with the 40-page Classic British Astro Report for interpreting single charts and the Soul Healing Transits Report to do chronological reports that interpret the transiting aspects. Reports can generate to pdf Adobe Reader file format or to html web browser format. As a program user, you can easily develop your own interpretation sets and use the program to immediately create reports from them (you can also have Halloran Software pay you for permission to resell your work to all the program users).