创建Excel应用程序时出现COM异常80040154 [英] COM Exception 80040154 When creating an Excel Application

问题描述

我正在尝试在没有也不会安装Office的服务器上运行我的应用程序.

I'm trying to run my application on a server which does not and will not have Office installed on it.

using EXCEL = Microsoft.Office.Interop.Excel;
...
EXCEL.Application app = new EXCEL.Application();//Exception thrown here

该代码在我自己的系统上运行正常，但是在服务器上它给出以下异常:

The code is working fine on my own system, but on the server it gives the following exception:

Unhandled Exception: System.Runtime.InteropServices.COMException: 
Retrieving the COM class factory for component with CLSID {...} failed
due to the following error: 80040154 Class not registered
(Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

两个系统都是32位的，并且我已经将Excel Interop dll复制到了应用程序的exe旁边.我还安装了 O2010PIA .

both systems are 32bits, and I've copied the excel Interop dll next to application's exe. I've also installed O2010PIA.

任何线索?

推荐答案

Office Interop程序集是可在运行时调用的包装器(RCW)，允许您通过其COM API与系统上安装的Office副本进行互操作.暴露.

The Office Interop assemblies are runtime-callable wrappers (RCW) that allow you to interoperate with a copy of Office that's installed on the system via the COM API that it exposes.

错误消息表明未安装Excel，完全符合我的期望.没有Office的计算机上不能使用Interop程序集.

The error message indicates that Excel isn't installed, exactly what I'd expect. You can't use the Interop assemblies on a machine without Office.

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