poorly written or corrupt printer drivers are the likely cause
http://members.shaw.ca/bsanders/CleanPrinterDrivers.htm
--
Alan Morris
Windows Printing Team
Search the Microsoft Knowledge Base here:
http://support.microsoft.com/default.aspx?scid=fh;[ln];kbhowto
This posting is provided "AS IS" with no warranties, and confers no rights.
<(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> This is a follow up plea for assistance from an earlier mailing:
>
> All printers have gone from my list of printers
> When selecting 'Add Printer' from Printers and Faxes the message
> "Operation can not be completed" is returned. This is the full
> message.
>
> MS article 314876 suggests restarting the printer spooler. I have
> done this from the Command Prompt and from Administration / Services.
> The Printer Spooler starts ok and stays started, until the 'Add
> Printer' button is selected agin. This appears to have the effect of
> stopping the Printer Spooler service and returns the message
> "Operation can not be completed" again.
>
> Any help gratefully received as I seem to have run out of helpful
> Microsoft Articles.
> Thanks also to Cari for earlier advice.
> Lol
>