samba - Jan 2005 - Problem installing printer driver wiht samba

Hi,

I'm trying to "install" the printer drivers of my HP Inkjet 3000
PS
Printer on a linux running samba and lprng.

So far configuration of samba seems correct (working print$ 
and so on), but the adddriver command issued cia rpcclient 
terminates with NT_STATUS_UNSUCEDDFULL.

So far my search in the web was unsucessful.

I think I have correctly traced the problem via the samba log to 
the following lines:

[2005/01/05 14:13:27, 2] smbd/open.c:open_file(246)
  TIGALCH opened file W32X86/HPBF322G.DLL read=Yes 
write=No (numopen=1)
[2005/01/05 14:13:27, 6] 
printing/nt_printing.c:get_file_version(723)
  get_file_version: File [W32X86/HPBF322G.DLL] bad DOS 
magic = 0x5a53
[2005/01/05 14:13:27, 6] 
printing/nt_printing.c:get_correct_cversion(1134)
  get_correct_cversion: Version info not found 
[W32X86/HPBF322G.DLL]
[2005/01/05 14:13:27, 2] smbd/close.c:close_normal_file(229)
  tigalch closed file W32X86/HPBF322G.DLL (numopen=0)

First the DLL is opened, then the application wants to get the 
DLL-version, which does not sucedd, and therefore terminates.

any hints would be welcome!

thanks and regards
Christoph