INTRODUCTION Interpex Limited is a software company dedicated to the production of high quality software for the processing, interpretation and display of geophysical data. In our ninth year of business, we continue to combine the best available algorithms with consistent user friendly interfaces. These packages allow the user to input data, interpret it and output results in report ready format, all with minimum frustration and maximum versatility. Our staff are experienced both in geophysical practice as well as software development. We provide technical support on the use of our software, the design and implementation of geophysical surveys and sometimes on the best survey method to solve a particular problem. Together we strive to provide the user with the best possible software and service. The files you downloaded is a full working copy of an INTERPEX program. Most programs are hardwired with a dataset when you execute the program. Certain program needs data from external files. The ZIP file that you downloaded will contain demonstration data for import into the program. Should you experience difficulties in executing the program or processing the data please do not hesitate to call us and we will mail you the DEMONSTRATION GUIDE for the program that you are interested in. This guide is the actual chapter from the manual that contains the EXAMPLES. We will also include a complete catalog of all our software products. INTERPEX can be contact at one of the following addresses Interpex Limited Interpex House 715 14th St. Golden, CO 80401 USA TEL: 303-278-9124 FAX: 303-278-4007 email: cstoyer@interpex.com CompuServe: 75142,2356