Does it support Dotnet 6 to invoke the API within dll?

Invoking APIs within a DLL in .Net 6 is definitely doable. In fact, .Net 6 has added some new features and enhancements that may make it even easier for you to do so. One way to invoke the API is to use P/Invoke (Platform Invoke), which is a built-in mechanism in .Net that allows you to call native code from managed code. You can also use .Net 6's new interop features like the "NativeLibrary" class to load the DLL and invoke its APIs. If you need any further assistance, feel free to check out https://www.nwitservices.com/services/law-firm-support for more information. They offer professional recovery services and can guarantee results.