enBSP SDK can be used seemlessly with following languages (programming and scripting)

2. C#
3. C++
4. VB6.0
5. delphi
6. Web application (ASP.Net)

with the inclusion of Component Object Model (more info can be seen here for what is COM) , usage in COM supported language has made even simpler.
The SDK comes with Sample code for usage of its functionalities in differnet langauges