Try Google... "WMI tutorial" gives many good links. The same goes for "WMI white paper"

>By the way!
>Where can I get good stuff about WMI?
>
>>You're welcome. WMI is really great, you can use it to find a lot of useful and useless information. :-)
>>
>>>Hi Tore!
>>>It's just and exercise. I'm not trying to know exactly the
>>>status of the printer. I just want to know how to use WMI
>>>to get that status. Training and knowing WMI.
>>>Thanks!
>>>
>>>>If you check carefully, you will find that Windows' Printer and Faxes does NOT always show the correct status of the printer either. So to repeat what others have told you, you are wasting your time, there is no 100% accurate way to determine the printer status.
>>>>
>>>>>Thanks!
>>>>>But, if the printer is "offline" it stills saying that
>>>>>the printer is "Idle".
>>>>>
>>>>>
>>>>>>
>>>>>>This should give you the correct status of the printer:
>>>>>>

strComputer = "."
>>>>>>objWMIService = Getobject("winmgmts:"+ "{impersonationLevel=impersonate}!\\" + strComputer + "\root\cimv2")
>>>>>>colInstalledPrinters = objWMIService.ExecQuery("SELECT * FROM Win32_Printer")
>>>>>>For Each objPrinter In colInstalledPrinters
>>>>>>?"Name: " + objPrinter.Name
>>>>>>Do Case
>>>>>>Case objPrinter.PrinterStatus = 1
>>>>>>strPrinterStatus = "Other"
>>>>>>Case objPrinter.PrinterStatus = 2
>>>>>>strPrinterStatus = "Unknown"
>>>>>>Case objPrinter.PrinterStatus = 3
>>>>>>strPrinterStatus = "Idle"
>>>>>>Case objPrinter.PrinterStatus = 4
>>>>>>strPrinterStatus = "Printing"
>>>>>>Case objPrinter.PrinterStatus = 5
>>>>>>strPrinterStatus = "Warmup"
>>>>>>Endcase
>>>>>>? "Printer Status: " + strPrinterStatus
>>>>>>Next