Registering a dll returns 0x80020009 error

Question

I am trying to register with regsvr32.exe the prnadmin.dll (on a Win7 target machine) but i get this error 0x80020009

Any suggestions please?

Answer 1

I had a similar problem with our Office COM addin. Visual Studio 2019 could successfully build the C++ code, but the registration failed with the above error code.

Solution was: Some files had a "wrong" file encoding (UTF8-BOM) instead of (UTF8) and after I changed the file encodings everything worked as expected.