The Internet Server is offered as two product versions, the full version and as a LITE version. The most significant difference between the two versions is the application program interface (API). The full version of the product supports an object API with the same framework of 2,300 functions and properties as the TatukGIS Developer Kernel toolkit product, while the IS LITE features a simple API requiring only a "web master" level of ability. Any IS LITE based application can be opened in the TatukGIS Internet Server product, providing for easy upgradeability.

　　Each TatukGIS Developer Kernel (ActiveX and .NET editions) license includes a perpetual development license for both the IS and IS LITE products. Therefore, DK-ActiveX licensed developers can work with the IS or IS LITE product in development mode and wait for the deployment to purchase the IS or IS LITE license.

　　The TatukGIS Editor or the free TatukGIS Viewer can be a useful companion product to the Internet Server. The Editor or Viewer can be used to organize the map layers and set up the layer properties such as colors, line widths, polygons fills, label appearances, transparences, symbols, etc. and save all as a TatukGIS project file (or even an ASP.NET project) for interactive web publishing with the IS. The functionality that can be realized with the IS LITE product on a web server is very similar to the functionality of the Viewer on a PC workstation. The API of the full Internet Server product supports the development of advanced functionality which exceeds the scope of the Editor or the free Viewer.