Simple COM Server (Part 2)

In this video, Pavel continues from the previous one, focusing on implementing a COM server. He explains how to export the DLLGetClassObject function by using extern C and a module definition file. He then creates a client application to test the COM server, encountering registration issues that he resolves by implementing and exporting the DllRegisterServer function. Pavel demonstrates the registration process using regsvr32 and verifies the registry entries. He further illustrates the COM object creation process, including the roles of the ClassFactory and the CreateInstance method, using breakpoints to examine the call stack. Finally, he creates a .NET client to showcase COM's language independence, addressing potential issues like platform mismatches and apartment threading, and successfully integrates the COM server with the .NET application.