RegDll and ERRO_SUCCESS

I use the RegDLL but it does not work correct. Therefor I want to see the Error flag and to see the ERROR_SUCCESS.

1. How should that be done?
2. Is there any examples?
3. Are there any obvious reasons why it does not function?

What does not work? Post some example code.

You can't register a 64-bit dll this way, you must use Library.nsh.

RegDll will fail if the dll depends on some other dll that is not on the system.

Here is my code:

Section "DLL-registrering"
SetOutPath $INSTDIR
RegDLL "$INSTDIR\Programs\DataFlex Reports 2019 Developer Edition API.ocx"
;ERROR_SUCCESS (=0) <<<<< this is not the code, but what I want in order to solve the problem
SectionEnd

It is not 64-bit Dll. and it is not depending on any other DLL.
When I run my project and start the printing, wich the DLL is there for, I get an error:

ActiveX component may not be properly installed or registere. Error code: 0x80040154

If I register the Dll manually with Regsv32 it all works. So I want to get the returncode from the RegDll command.

You code does not make much sense, you do SetOutPath $INSTDIR but you access $INSTDIR\Programs!


RegDll is just LoadLibraryEx(path, 0, LOAD_WITH_ALTERED_SEARCH_PATH) + GetProcAddress. If that fails it probably means it could not load your dll.


If your dll depends on something that is not in system32 then you can try:

SetOutPath "$INSTDIR\Programs"
File "DataFlex Reports 2019 Developer Edition API.ocx"
System::Call 'kernel32::AddDllDirectory(w "$INSTDIR\Programs")'
RegDLL "$INSTDIR\Programs\DataFlex Reports 2019 Developer Edition API.ocx" 

You could also try the logging function in https://www.dependencywalker.com/

I still do not get it to work.
My code is now:

System::Call 'kernel32::AddDllDirectory(w "$INSTDIR\Programs")'
RegDLL "$INSTDIR\Programs\DataFlex Reports 2019 Developer Edition API.ocx"

The OCX-file is already in the folder \Programs, so the File-command is not needed.

When I run the regsvr32 manually, I have to run it as Administrator. Could it be that this fails when run in this way?

The Helpfiloe in the Dependencywalker is empty, so I do not know how to run the logging function.

I can't tell you if it needs to run as administrator or not, only the developer of that .ocx file knows. Unless it only writes to HKEY_CURRENT_USER, it needs to run as admin.

The logging function is in the Profile menu (IIRC).