How to Embed .NET Core DLL into a Custom C++ Host Loader

Concept

Load .NET project DLLs directly from PE resources or ELF sections and initialize CoreCLR from these embedded resources.

Why better than single file publish ?

True Memory-Based Operation The resource injection technique allows embedded .NET DLLs to be loaded directly from memory without relying on the file system.

Greater Flexibility Injected DLLs are placed in custom sections or embedded as resources within the host binary, enabling completely customizable loading, management, and execution.

Enhanced Security The injection method allows resources to be encrypted, reducing the chances of reverse engineering and manipulation.

Improved Startup Performance The native binary directly invokes CoreCLR from memory and loads the injected DLLs as resources, significantly reducing startup time.

Easier Diagnostics and Debugging The host code retains complete control over .NET runtime initialization, providing more precise diagnostic tools and logging capabilities.

Conclusion While Single…