The operating system GREAT-ER is designed for is WINDOWS NT 4.0. Please note that GREAT-ER will not work properly under WINDOWS 95, although ARCVIEW 3.x does. The reasons for this are some basic incompatible techniques in executing models and analysis tools which are not available under WINDOWS 95. Executability under WINDOWS 98 was not tested.
To conclude: You need WINDOWS NT 4.0 and ARCVIEW 3.0a or 3.1 to work with GREAT-ER.
The GREAT-ER system contains a set of scripts for ARCVIEW, models and other programs for data analysis. It comes with a set of data for selected regions needed for the simulations and additional information. The installation requires a minimum free disk space of approximately 50 MB.