Can I use managed C# DLL in unmanaged Delphi EXE?

Question

Can I use managed C# DLL in unmanaged Delphi EXE? Or the only way is to have managed DLL and EXE or unmanaged DLL and EXE?

Answer 1

There are quite a few options, including at least the following:

1. Expose the classes that you need via COM which can be readily consumed by Delphi.
2. Create a mixed mode C++/CLI wrapper that uses the C# DLL as a reference. That mixed mode DLL can export native functions and you can then consume that DLL using Delphi external . That is, you consume the DLL just in the same way as Windows system DLLs are consumed.
3. Use Robert Giesecke's UnmanagedExports .
4. Use the CLR's native API to consume the C# DLL directly. This option is probably the least attractive since it's the hardest to get right.