The TatukGIS Developer Kernel (DK) is a powerful GIS component (SDK) for custom developing stand-alone, client-server, web server, embedded, and mobile applications. It is ideal for adding GIS functionality to already existing products, porting software applications from less attractive GIS platforms, and developing new applications from scratch. DK product editions are available for multiple development platforms:

Microsoft .NET for WinForms and WPF
Microsoft ActiveX/OCX
Microsoft ASP.NET (for web solutions)
Microsoft .NET Compact Framework (for mobile solutions)
Embarcadero Delphi/C++Builder VCL