1) Tango_DLL.dll	= 32 Bit DLL

2) Tango_DLL64.dll	= 64 Bit DLL


3) Tango.cpp, Tango.h   = Valid for 32 and 64 Bit DLL

4) Tango.cpp, Tango.h   also available for Microsoft Visual Studio 2008-2010 development environment: 
                        --> Browse to Folder \Visual Studio 2008-2010\