Building COM Servers in .NET

Lim Bio Liong

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2 Feb 2006CPOL98 min read

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Learn the fundamental principles of building COM DLL and EXE Servers using a .NET language.

buildcomserversindotnet_src.zip
- CSharpExeCOMServers
  - IDotNetClassFactory
    - clients
      - CPPClient01
        
        CPPClient01.cpp
        
        CPPClient01.sln
        
        CPPClient01.vcproj
        
        Debug
        
        ITestCSharpObjectInterfacesImpl01.exe
        
        ReadMe.txt
        
        stdafx.cpp
        
        stdafx.h
    - implementations
      - IDotNetClassFactory_Impl01
        
        AssemblyInfo.cs
        
        IDotNetClassFactory_Impl01.cs
        
        IDotNetClassFactory_Impl01.csproj
        
        IDotNetClassFactory_Impl01.csproj.user
        
        IDotNetClassFactory_Impl01.sln
        
        IDotNetClassFactory_Impl01.snk
        
        RegisterAssemblyToRegistryAndGAC.bat
    - interfaces
      - IDotNetClassFactory
        
        AssemblyInfo.cs
        
        IDotNetClassFactory.cs
        
        IDotNetClassFactory.csproj
        
        IDotNetClassFactory.csproj.user
        
        IDotNetClassFactory.sln
        
        IDotNetClassFactory.snk
        
        RegisterAssemblyToRegistryAndGAC.bat
    - testobjects
      - implementations
        
        ITestCSharpObjectInterfacesImpl01
        
        App.ico
        
        AssemblyInfo.cs
        
        ITestCSharpObjectInterfacesImpl01.csproj
        
        ITestCSharpObjectInterfacesImpl01.csproj.user
        
        ITestCSharpObjectInterfacesImpl01.sln
        
        ITestCSharpObjectInterfacesImpl01.snk
        
        RegisterAssemblyToRegistryAndGAC.bat
        
        TestCSharpObject01.cs
      - interface
        
        ITestCSharpObjectInterfaces
        
        AssemblyInfo.cs
        
        ITestCSharpObjectInterfaces.cs
        
        RegisterAssemblyToRegistryAndGAC.bat
        
        TestCSharpObjectInterfaces.csproj
        
        TestCSharpObjectInterfaces.csproj.user
        
        TestCSharpObjectInterfaces.sln
        
        TestCSharpObjectInterfaces.snk
  - ManagedCOMLocalServer
    - clients
      - CPPClient01
        
        CPPClient01.cpp
        
        CPPClient01.ncb
        
        CPPClient01.sln
        
        CPPClient01.vcproj
        
        ReadMe.txt
        
        stdafx.cpp
        
        stdafx.h
    - implementations
      - ManagedCOMLocalServer_Impl01
        
        App.ico
        
        AssemblyInfo.cs
        
        ClassFactoryBase.cs
        
        GarbageCollection.cs
        
        IClassFactory.cs
        
        keyfile.snk
        
        ManagedCOMLocalServer_Impl01.cs
        
        ManagedCOMLocalServer_Impl01.csproj
        
        ManagedCOMLocalServer_Impl01.csproj.user
        
        ManagedCOMLocalServer_Impl01.sln
        
        ReferenceCountedObject.cs
        
        RegisterAssemblyToRegistry.bat
        
        SimpleCOMObject.cs
  - UsingStandardCOMInterop
    - clients
      - CPP
        
        CPPClient01
        
        CPPClient01.cpp
        
        CPPClient01.sln
        
        CPPClient01.vcproj
        
        ReadMe.txt
        
        stdafx.cpp
        
        stdafx.h
    - implementations
      - SimpleCOMObject_CSharpExeImpl
        
        App.ico
        
        AssemblyInfo.cs
        
        keyfile.snk
        
        RegisterAssemblyToRegistryAndGAC.bat
        
        SimpleCOMObject_CSharpExeImpl.cs
        
        SimpleCOMObject_CSharpExeImpl.csproj
        
        SimpleCOMObject_CSharpExeImpl.csproj.user
        
        SimpleCOMObject_CSharpExeImpl.sln
- SimpleCOMObject
  - clients
    - CPP
      - CPPClient01
        
        CPPClient01.cpp
        
        CPPClient01.sln
        
        CPPClient01.vcproj
        
        ReadMe.txt
        
        stdafx.cpp
        
        stdafx.h
    - VB
      - VBClient01
        
        FormMain.frm
        
        MSSCCPRJ.SCC
        
        VBClient01.exe
        
        VBClient01.vbp
        
        VBClient01.vbw
  - implementations
    - C#
      - SimpleCOMObject_CSharpImpl
        
        AssemblyInfo.cs
        
        KeyFile.snk
        
        KeyFile.snk.bak_
        
        RegisterAssemblyToRegistryAndGAC.bat
        
        SimpleCOMObject.cs
        
        SimpleCOMObject_CSharpImpl.csproj
        
        SimpleCOMObject_CSharpImpl.csproj.user
        
        SimpleCOMObject_CSharpImpl.sln
    - CPP
      - SimpleCOMObject_CPPImpl
        
        _ISimpleCOMObject_CPPImplEvents_CP.h
        
        dlldata.c
        
        ReadMe.txt
        
        resource.h
        
        SimpleCOMObject_CPPImpl.cpp
        
        SimpleCOMObject_CPPImpl.def
        
        SimpleCOMObject_CPPImpl.h
        
        SimpleCOMObject_CPPImpl.idl
        
        SimpleCOMObject_CPPImpl.rc
        
        SimpleCOMObject_CPPImpl.rgs
        
        SimpleCOMObject_CPPImpl.sln
        
        SimpleCOMObject_CPPImpl.vcproj
        
        SimpleCOMObject_CPPImpl.vcproj.vspscc
        
        SimpleCOMObject_CPPImpl_.cpp
        
        SimpleCOMObject_CPPImpl_.h
        
        SimpleCOMObject_CPPImpl_i.c
        
        SimpleCOMObject_CPPImpl_p.c
        
        SimpleCOMObject_CPPImpl1.rgs
        
        SimpleCOMObject_CPPImplps.def
        
        SimpleCOMObject_CPPImplPS.vcproj
        
        SimpleCOMObject_CPPImplPS.vcproj.vspscc
        
        stdafx.cpp
        
        stdafx.h
  - interfaces
    - SimpleCOMObject
      - _ISimpleCOMObjectEvents_CP.h
      - CreateAndRegisterPrimaryInteropAssembly.bat
      - dlldata.c
      - Interop.SimpleCOMObject.dll
      - ReadMe.txt
      - Resource.h
      - SimpleCOMObject.cpp
      - SimpleCOMObject.def
      - SimpleCOMObject.h
      - SimpleCOMObject.idl
      - SimpleCOMObject.rc
      - SimpleCOMObject.rgs
      - SimpleCOMObject.sln
      - SimpleCOMObject.snk
      - SimpleCOMObject.vcproj
      - SimpleCOMObject.vcproj.vspscc
      - SimpleCOMObject_.cpp
      - SimpleCOMObject_.h
      - SimpleCOMObject_i.c
      - SimpleCOMObject_p.c
      - SimpleCOMObject1.rgs
      - SimpleCOMObjectps.def
      - SimpleCOMObjectPS.vcproj
      - SimpleCOMObjectPS.vcproj.vspscc
      - stdafx.cpp
      - stdafx.h

========================================================================
    CONSOLE APPLICATION : CPPClient01 Project Overview
========================================================================

AppWizard has created this CPPClient01 application for you.  
This file contains a summary of what you will find in each of the files that
make up your CPPClient01 application.


CPPClient01.vcproj
    This is the main project file for VC++ projects generated using an Application Wizard. 
    It contains information about the version of Visual C++ that generated the file, and 
    information about the platforms, configurations, and project features selected with the
    Application Wizard.

CPPClient01.cpp
    This is the main application source file.

/////////////////////////////////////////////////////////////////////////////
Other standard files:

StdAfx.h, StdAfx.cpp
    These files are used to build a precompiled header (PCH) file
    named CPPClient01.pch and a precompiled types file named StdAfx.obj.

/////////////////////////////////////////////////////////////////////////////
Other notes:

AppWizard uses "TODO:" comments to indicate parts of the source code you
should add to or customize.

/////////////////////////////////////////////////////////////////////////////

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Written By

Lim Bio Liong

Systems Engineer NEC

Singapore

Lim Bio Liong is a Specialist at a leading Software House in Singapore.

Bio has been in software development for over 10 years. He specialises in C/C++ programming and Windows software development.

Bio has also done device-driver development and enjoys low-level programming. Bio has recently picked up C# programming and has been researching in this area.

Building COM Servers in .NET

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