ERROR 0X000006D9 WHEN YOU TRY TO SHARE A PRINTER WINDOWS 7

If the windows firewall service is disabled, you cannot share a printer. You’ll receive the error message above.

If you start the windows firewall service, then share the printer, you can then disable it and print just fine.

http://support.microsoft.com/kb/2123653

FYI. In answerbook. Win7 only.