"LIMDEP is the premier program for estimation and analysis of regression models, and qualitative and limited dependent variables. No other program offers a greater variety of modeling frameworks, tools and features for analysis of cross section, panel, and time series data." The latest version of LIMDEP, 7.0, include a complete Windows interface (new statistical features are in the mainframe version as well). You can find extensive details about the program here (along with details on NLOGIT 2.0), ordering information (including ordering on-line), a discussion list, contact information, and an on-line manual.