.net 如何修复 COMException 错误 80040154？
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How to repair COMException error 80040154?
提问by Hymannad
Moving a working C# project from a 64-bit Windows 7 machine to a 32-bit XP machine caused the following error:
将工作 C# 项目从 64 位 Windows 7 机器移动到 32 位 XP 机器导致以下错误：
Retrieving the COM class factory for component with CLSID {681EF637-F129-4AE9-94BB-618937E3F6B6} failed due to the following error: 80040154.
Retrieving the COM class factory for component with CLSID {681EF637-F129-4AE9-94BB-618937E3F6B6} failed due to the following error: 80040154.
681EF637-F129-4AE9-94BB-618937E3F6B6is not in the registry so it is not properly installed, but this is same ID that was previously a problem on the 64-bit Windows 7 machine.
681EF637-F129-4AE9-94BB-618937E3F6B6不在注册表中，因此未正确安装，但这与以前在 64 位 Windows 7 计算机上出现问题的 ID 相同。
The solution to this error on the 64-bit Windows 7 machine was found here(change Platform Target to x86) but this does not solve the problem on the 32-bit XP machine.
解决这个错误的64位Windows 7的计算机上发现这里（其他城市平台目标x86的），但是这并没有解决32位XP机器上的问题。
How do I find the DLL associated with 681EF637-F129-4AE9-94BB-618937E3F6B6, or, even better, how do I repair this exception?
如何找到与 关联的 DLL 681EF637-F129-4AE9-94BB-618937E3F6B6，或者更好的是，如何修复此异常？
采纳答案by Ciaran Keating
To find the DLL, go to your 64-bit machine and open the registry. Find the key called HKEY_CLASSES_ROOT\CLSID\{681EF637-F129-4AE9-94BB-618937E3F6B6}\InprocServer32. This key will have the filename of the DLL as its default value.
要找到 DLL，请转到您的 64 位计算机并打开注册表。找到名为 的键HKEY_CLASSES_ROOT\CLSID\{681EF637-F129-4AE9-94BB-618937E3F6B6}\InprocServer32。该键将 DLL 的文件名作为其默认值。
If you solved the problem on your 64-bit machine by recompiling your project for x86, then you'll need to look in the 32-bit portion of the registry instead of in the normal place. This is HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Classes\CLSID\{681EF637-F129-4AE9-94BB-618937E3F6B6}\InprocServer32.
如果您通过为 x86 重新编译项目来解决 64 位机器上的问题，那么您需要查看注册表的 32 位部分而不是正常位置。这是HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Classes\CLSID\{681EF637-F129-4AE9-94BB-618937E3F6B6}\InprocServer32。
If the DLL is built for 32 bits then you can use it directly on your 32-bit machine. If it's built for 64 bits then you'll have to contact the vendor and get a 32-bit version from them.
如果 DLL 是为 32 位构建的，那么您可以直接在 32 位机器上使用它。如果它是为 64 位构建的，那么您必须联系供应商并从他们那里获得 32 位版本。
When you have the DLL, register it by running c:\windows\system32\regsvr32.exe.
拥有 DLL 后，通过运行 c:\windows\system32\regsvr32.exe 来注册它。
回答by Preben Huybrechts
I had the same issue in a Windows Service. All keys where in the right place in the registry. The build of the service was done for x86 and I still got the exception. I found out about CorFlags.exe
我在 Windows 服务中遇到了同样的问题。所有键都在注册表中的正确位置。该服务的构建是针对 x86 完成的，但我仍然遇到异常。我发现了CorFlags.exe
Run this on your service.exewithout flags to verify if you run under 32 bit. If not run it with the flag /32BIT+ /Force(Force only for signed assemblies)
在service.exe没有标志的情况下运行它以验证您是否在 32 位下运行。如果不使用标志运行它/32BIT+ /Force（仅对签名程序集强制执行）
If you have UAC turned you can get the following error: corflags : error CF001 : Could not open file for writingGive the user full control on the assemblies.
如果您打开了 UAC，您可能会收到以下错误：corflags : error CF001 : Could not open file for writing让用户完全控制程序集。
回答by kalidoss
WORKAROUND:
解决方法：
The possible workaround is modify your project's platform from 'Any CPU' to 'X86' (in Project's Properties, Build/Platform's Target)
可能的解决方法是将您的项目平台从“任何 CPU”修改为“X86”（在项目的属性、构建/平台的目标中）
ROOTCAUSE
根本原因
The VSS Interop is a managed assembly using 32-bit Framework and the dll contains a 32-bit COM object. If you run this COM dll in 64 bit environment, you will get the error message.
VSS Interop 是一个使用 32 位框架的托管程序集，dll 包含一个 32 位 COM 对象。如果您在 64 位环境中运行此 COM dll，您将收到错误消息。
回答by Yogesh
Move excel variables which are global declare in your form to local like in my form I have:
将表单中全局声明的 excel 变量移动到本地，就像在我的表单中一样：
Dim xls As New MyExcel.Interop.Application
Dim xlb As MyExcel.Interop.Workbook
above two lines were declare global in my form so i moved these two lines to local function and now tool is working fine.
以上两行在我的表单中被声明为全局，所以我将这两行移动到本地函数，现在工具工作正常。
