In the following I will list all the necessary steps for a clean and reliable setup of a 2PC-Network. All steps have to be done for both computers:
1.Verify that the link LED is lighted on both network cards (NICs)
2.RightClick the Workplace Icon on your desktop. Chose Properties/ComputerName and click the ChangeButton. Give the computer a unique name, e.g. PC01 and PC02 resp. Chose the same Workgroup for both computers, e.g. MyNetwork and quit the SystemProperties by clicking OK.
3.Now RightClick the Network Neighborhood Icon and chose Properties. DoubleClick the NIC and Click Properties. Then go to the Properties of the TCP/IP protocol and define a unique ip address for each NIC, i.e. 10.0.0.1 and 10.0.0.2 resp. The subnet mask for that address range must be 255.0.0.0. The Standard Gateway field is left blank, because there is no gateway in this arrangement. Both DNS fields are left blank also.
4.As a last step make a share (partition or directory) on both computers. Optionally you can define different access rights for the two computer shares.
That?s all about it
Remark: As I'm working with the German version of Win XP some designations may not be absolutely correct.