Call the CUPS server via IPP and request the driver files and the PPD file for the named printer.

Store the files temporarily in the local TEMPDIR (as defined in cupsd.conf).

Connect via smbclient to the Samba server's [print$] share and put the files into the share's WIN40 (for Windows 9x/Me) and W32X86 (for Windows NT/200x/XP) subdirectories.

Connect via rpcclient to the Samba server and execute the adddriver command with the correct parameters.

Connect via rpcclient to the Samba server a second time and execute the setdriver command.