DLL RegisterServer entry point was not found

[JuanAlberto]

Hi,
I am writing a VBA/Excel code and I need to add a reference.

When I try to register manually the reference by running the dialog

regsvr32 C:\Juan\Capital_Steel_Buildings\LGSF\lgsfEngineering.dll

I have a display window that says

"... .dll file was loaded, but the DLLRegisterServer entry point was not found, the file cannot be registered"

Someone can let me know how I can solve this problem

Regards
Juan Alberto