A lot of Java/.NET integration advice starts with “just make it an API.” That works until the call path is fine-grained, latency-sensitive, or tied to desktop/server code that already runs on the same machine. For those cases, shared memory is worth understanding. This walkthrough breaks down what an in-process Java/.NET bridge actually needs: proxy assemblies, runtime DLLs, JVM configuration, Java-side JARs, and the architecture checks that prevent painful startup failures. What We're Building We'll dissect a .NET application that calls into a Java class using JNBridgePro with shared memory. If you need to call Java from a .NET project , understanding these pieces is essential. The goal is to make the moving parts visible: How a proxy connects the .NET and Java worlds What files live on each side Key considerations for shared memory setups Note: Switching this project to TCP, including SSL, IP/class whitelisting, and Java-side startup, is covered in the related TCP configuration guide on the JNBridge site.…