Error 0x00000003 with RUNDLL32 PRINTUI.DLL,PrintUIEntry

Hey there,

I have and old Printer Script here which used to work:

rundll32 printui.dll,PrintUIEntry /dl /q /n "PRINTERNAME"
cscript PATH\prnport.vbs -d -r IP_x.x.x.x

cscript PATH\prnport.vbs -a -r IP_x.x.x.x -h IP_x.x.x.x -o raw -n 9100

RUNDLL32 PRINTUI.DLL,PrintUIEntry /if /b "PRINTERNAME" /f "DRIVER.inf" /r "IP_x.x.x.x" /m "DRIVERNAME" 

Now I get Error 0x00000003 in the last step. what does error 3 mean? I like that kind of error messages :)

Testing System is Win 7 x64 SP1