首先，我是新来的COM，目前很困惑。我读过关于COM MSDN上和一般网站大量的文档资料，但很多似乎已经过时和过于复杂。

First off, I am new to COM, and currently quite confused. I've read a lot of documentation on COM on MSDN and the general web, but a lot of it seems outdated and overly complex.

下面是我认为是必要的，以得到它的工作。这还没有，所以我敢肯定，我失去了一些东西，但给我的食谱，我希望有人能发现问题：

Here's what I believe to be necessary to get it to work. It doesn't yet, so I am sure I am missing something, but by giving my recipe, I hope someone can spot the problem:

创建一个C＃控制台应用程序项目。我将其命名为CSharpApp 创建一个C ++ ATL项目。我把它叫做ComLib.Interop。 添加类（模板：ATL简单对象），我称之为InteropDemo 在类视图中，右键单击IInteropDemo，并添加一个方法HelloWorld的。 Create a C# console app project. I name it CSharpApp Create a C++ ATL project. I call it ComLib.Interop. Add class (template: ATL Simple Object), which I call "InteropDemo" In class view, right-click IInteropDemo and add a method HelloWorld. 呼叫regsrv32.exe在编译COM DLL，然后选择DLL中的COM选项卡中的添加引用...

感谢的答案，我更新的问题，以反映综合解决方案。

Thanks to the answers, I updated the question to reflect the combined solution.

推荐答案

请尝试以下步骤：

确保这两个项目，非托管C ++和托管C＃具有相同的位数，x86或x64。比方说，这是86，为了清晰。 开启管理命令提示符并注册COM DLL： C： WINDOWS Syswow64资料 regsvr32.exe的C：完整路径 ComLib.Interop.dll 运行Visual Studio中的管理。执行步骤1,2,4,5,6。不要做3。 Make sure both projects, unmanaged C++ and managed C# have the same bitness, either x86 or x64. Let's say it's x86, for clarity. Open Admin Command Prompt and register your COM DLL: C:WindowsSysWOW64regsvr32.exe c:full-pathComLib.Interop.dll Run Visual Studio as Admin. Do steps 1,2,4,5,6. Don't do 3.

见，如果你到了7。我认为这应该工作。

See if you get to 7. I think that should work.

请注意，你只需要在开发机器上的注册。隔离COM应该在其他地方。

Note you only need the registration on the Development machine. Isolated COM should work everywhere else.