Forgot to add some of the findings from the search:

Test if port is listening = http://kixtart.org/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=2&t=002265
OS type = http://www.kixtart.org/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=2;t=002962

/Nicolaj