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HST Software was established in 1991 by Terry W. Towle with the release of "Claim Digger", a program to compare PrimaveraŽ schedules back in the days of DOS. Terry has over twenty-three years of project management experience. The purpose was to bring  project management software solutions to market that were originally developed for use by his own project teams. Developing the software for personal use guaranteed that they would work in "real life", giving the practitioner useful programs that were also affordable.

We must be doing something right because news of our products is spread mainly by word of mouth from satisfied customers. On December 15, 2003, Primavera Systems, Inc. acquired our Digger 3.0 and Tipper 1.1 products. Our goal is to continue to provide project management software solutions that work as well for you as they do for us. If they do, please help us spread the word!