我究竟如何配置 DCOM 以将我的 DLL 加载到单独的进程中? [英] How exactly do I config DCOM to load my DLL into a separate process?

问题描述

我正在尝试将现有的本机 C++ ATL 进程内 COM 服务器强制转换为单独的进程.我希望DCOM可以在不改变COM服务器的情况下为我做到这一点.

I'm trying to force an existing native C++ ATL in-proc COM server into a separate process. I hope DCOM can do this for me without changing the COM server.

我从通常的注册表设置开始 - 我有一个 HKCRCLSID{classId} 条目和一个 InProcServer32 键，用于指定 .dll 文件的路径.

I started with a usual registry setup - I have a HKCRCLSID{classId} entry and an InProcServer32 key there specifying the path to the .dll file.

我生成了一个应用程序 ID (GUID) 并随处添加了它.具体来说，我在 HKCRCLSID{classId} 下添加了一个字符串值AppId"，等于应用程序 ID.我还添加了一个 HKCRAppId{applicationId} 键和一个等于空字符串的字符串值DllSurrogate".我认为这足以迫使我的 COM 服务器成为系统提供的默认代理.

I generated an application id (GUID) and added it here and there. Specifically I added a string value "AppId" under HKCRCLSID{classId} equal to the application id. I also added a HKCRAppId{applicationId} key and a string value "DllSurrogate" equal to an empty string. I thought it would be enough for forcing my COM server into a default system-provided surrogate.

DCOM 应用程序出现在 DCOM 配置控制台中.但是，当我调用 CoCreateInstance() 或 CoGetClassObject() 并提供类 ID 和 CLSCTX_LOCAL_SERVER 时，它返回类未注册".我做错了什么?

The DCOM application appears in the DCOM configuration console. However when I call CoCreateInstance() or CoGetClassObject() and provide the class id and CLSCTX_LOCAL_SERVER it returns "Class not registered". What am I doing wrong?

UPD:已解决.所采取的步骤足以使其正常工作，只是我正在编辑错误的类 ID 的注册表，该类 ID 由于某种原因在 InProcServer32 键下具有相同的路径 - 也许这是一个 COM 地狱问题.

UPD: Resolved. The steps taken were enough to make it work except that I was editing the registry for the wrong class id that for some reason had the same path under InProcServer32 key - perhaps that was a COM hell issue.

推荐答案

遵循检查清单:

1. 必须在注册表中的 CLSID 键下指定一个 AppID 值，以及一个对应的 AppID 键.(已检查)
2. 在激活调用中，设置了 CLSCTX_LOCAL_SERVER 位，并且 CLSID 键未指定 LocalServer32、LocalServer 或 LocalService.(已检查)
3. CLSID 键包含 InprocServer32 子键.(已检查)
4. 在 InprocServer32 键中指定的代理/存根 DLL 存在.???
5. DllSurrogate 值存在于 AppID 键下.(已检查)

1. There must be an AppID value specified under the CLSID key in the registry, and a corresponding AppID key. (checked)
2. In an activation call, the CLSCTX_LOCAL_SERVER bit is set and the CLSID key does not specify LocalServer32, LocalServer, or LocalService. (checked)
3. The CLSID key contains the InprocServer32 subkey. (checked)
4. The proxy/stub DLL specified in the InprocServer32 key exists. ???
5. The DllSurrogate value exists under the AppID key. (checked)

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