Hello, we are seeing that on Windows Server 2008r2 is the Win32 error code 0x00000bcb is returned for a failing AddPrinterDriverEx call. This Win32 error code is not documented in [MS-ERREF]. Could you please add it? Thanks! Cheers, Andreas -- Andreas Schneider GPG-ID: CC014E3D Samba Team asn at samba.org www.samba.org