Printer sharing does not work unless I disable the Windows firewall on the WinXP Professional PC that has the printer connected.
WinXP professional SP3 with local printer which is SHARED. Firewall has "File and Printer sharing" box ticked under the Exceptions tab.
WinXP SP2 and SP3 home computers on the same WORKGROUP with Windows firewall enable can only print to the SHARED printer on the WinXP professional PC when the firewall on the PC with the printer is turned OFF!!
All computers have the "File and Printer sharing" option ticked in the Windows firewall setup under exceptions.