Add the application's type library as a reference in a .NET project as follows: With the .NET project open, click Project | Add Reference. Then browse for the type library, which is called Authentic Desktop.tlb, and is located in the Authentic Desktop application folder.
Then declare a variable to access the Authentic Desktop API:
// An instance of Authentic Desktop is accessed via its automation interface.
XMLSpyLib.Application Authentic Desktop;
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