Developer Kernel for ActiveX The TatukGIS Developer Kernel (DK) for ActiveX edition is a professional grade, general-purpose GIS SDK (software development kit) for developing custom GIS applications for the Windows operating system. The SDK is designed for ActiveX compatible development environments including Visual Basic 6, Visual C++ 6, and Visual Studio 2013-2022. The DK for ActiveX edition features the same object-oriented API and comprehensive geospatial functionality as DK editions designed for other development platforms, except for differences required by the different technologies. The similarity across SDK editions enables easier migration of application development between development platforms and operating systems. Read More about Developer Kernel Buy Samples