Winsock errors normally come from some network problem that has occurred. Most often causes fit into two different categories: hardware (bad network cards, bad cabling, network down, ..) and software (firewall blocking inbound traffic, Internet security software blocking inbound traffic, personal firewall blocking port traffic, software already using a specific network port, .).
If network traffic seems normal, i.e. your web browser seems to be working, the most common problem is software related. Two major problems occur frequently, there is some security software blocking inbound and outbound network port traffic, or there is some software already using the network port Print Wizard Services, such as LPD needs.
Personal firewalls and internet security suites, such as McAfee or Symantecs, or Microsoft's own Windows firewall maybe blocking port traffic for the LPD service.
The best first test is to disable the firewall portion of your security software and see if the LPD service will run. If so, turn back on the firewall or security software and check to see if you can add the network port to an exceptions list, or add the Print Wizard program to the application exceptions list (PWLPD.EXE for Print Wizard Service or PWSERVICES.EXE for the Windows Service).