The native .NET interface is suitable for use in any .NET programming environment and can be found under the Switch Path Manager folder
..\SPM\SDK\Client\DotNET\Pickering.SPM.Client.NET.dll
Programming examples can be found under
..\Switch Path Manager\.NET
The .NET API documentation can be found under
..\Switch Path Manager\API Documentation\.NET
•SPM_allFunctionsTesting.NET - applies most of all available API functions
•Tutorial_.NET_Example - C# code of the mentioned tutorial switching project