RPCClient Errors (Linux CUPS/Samba printer sharing)

[sailor]

I am trying to set up a print server using a linux box I have sitting around. The printer is up and working fine, Samba is up and running, and I can see the printer from the Windows boxen. Problem is, when I try to add it, it yells at me about not being provided with drivers. I dig around, and there is a script to take care of this: cupsaddsmb. I run it, and get the following error:

Running command: rpcclient localhost -N -U'asdfasdf' -c 'adddriver "Windows NT x86" "ravenel-laser:cupsdrv5.dll:ravenel-laser.ppd:cupsui5.dll:cups5.hlp:NULL:RAW:NULL"'
result was DOS code 0x00000003

No idea what that is or why its returning an error, and Google is giving me nothing of value. I got rid of the username and password: thats why there is that little "asdfasdf" in there

Thanks for any help...