模块“.dll”已加载但未找到入口点

Question

I have a DLL which cause to an error when I run the application. The error says that the service is not registered. So I run command regsvr32 with the name of the DLL. But it gives me an error, now the error is:

The module 'mydll.dll' was loaded but the entry-point 'DllRegisterServer' was not found.

Make sure that 'mydll.dll' is a valid DLL or OCX file and then try again

I worked on Windows 7 64-bit. On Windows XP it works fine!. Does someone know what it can be? Thanks!

Answer 1

The error indicates that the DLL is either not a COM DLL or it's corrupt. If it's not a COM DLL and not being used as a COM DLL by an application then there is no need to register it.
From what you say in your question (the service is not registered) it seems that we are talking about a service not correctly installed. I will try to reinstall the application.

Answer 2

I had this problem and

dumpbin /exports mydll.dll

and

depends mydll.dll

showed 'DllRegisterServer'.

The problem was that there was another DLL in the system that had the same name. After renaming mydll the registration succeeded.

Answer 3

What solved it for me was using :

regasm.exe 'xx.dll' /tlb /codebase /register

It is however, important to understand the difference between regasm.exe and regsvr.exe:

What is difference between RegAsm.exe and regsvr32? How to generate a tlb file using regsvr32?

Answer 4

Make sure the command prompt window has admin permissions. I am using Windows Server 2012 and was getting the error when using regsvr32 in the command prompt. I opened the command prompt by right clicking on it from All Programs/Windows System/Command Prompt and selecting "run as administrator" Running regsvr32 in this window successfully loaded the dll file.

Answer 5

I found the answer: I need to add a new application to the service components in my computer and then add the right DLL's.

Thanks! If anyone has the same problem, I'll be happy to help.