If you installed pdns on Windows NT, 2000 or XP you can run pdns as a service.
This is how to do it:
Go to services (Start->Settings->Control Panel->Administrative Tools->Services
) and locate PDNS
(you should have registered the program as a NT service during the installation).
Double-click on PDNS
and push the start button. You should now see a progress bar that gets to the end and see the status change to 'Started'.
This is the same as starting pdns like this:
pdns.exe --ntservice
If you haven't registered pdns as a service during the installation you can do so from the command line by starting pdns like this:
pdns.exe --register-service
You can run pdns as a standard console program by using a command prompt or Start->Run...
This way you can specify command-line parameters (see the documentation for command line options).
If you chose to add a PowerDNS menu to the start menu during the installation you can start pdns using the pdns shortcut in that menu.