What is the registry setting for the current selected default printer.
It is some kind of combination of printer-name, port all contained in a ','-seperated string.
For the port in case of a file-port.
*Is it possible to change the port-directory by changing the registry setting.
*Is the printer-definition also affected when the registry-setting is changed.
*And is it possible to force this registry setting to be a named file instead of a directory.