Glad to help.
Ok, the networking in Win2k and XP are identical, so this applies to both machines:
Click on the start button and go to the control panel. On the XP machine, you may need to change the control panel view to classic (on the top left corner of the control panel screen). Double-click on "network connections". In here you should find an option called "local area connection". Right-click on that and select properties. The only thing you need to check in here is that both PC's have TCP/IP installed (it should be by default). Double-click on TCP/IP to get to the properties and note down the IP address and subnet mask. Do this on the other machine and check that the IP addresses are the same except for the last number, so what you should have is something like this:
PC1: 192.168.1.1
PC2: 192.168.1.2
Subnet mask for each: 255.255.255.0
You may want to install another network protocol while you're here too. Click on "install", select "add" then "protocol" and select IPX/SPX. You will probably be asked to provide your istallation disks, but otherwise the setup is automatic.
You can now close all the network connection windows, and if you've made any changes you will lalso need to restart the PC.
Next, go back to the control panel and double-click on "system". In there is a tab called "computer name". This has the computer name and workgroup name for each computer. The computer name needs to be differrent on each PC, but the workgroup needs to be the same. If you need to change either name, there should be a "network ID wizard" to help with that. All you need to do here is ensure both machines are on the same workgroup, and change the workgriup name if necessary.
Finally, you need to check that each PC has a common user account for security purposes. Once again, in the control panel, double-click "user accounts". The simplest way to ensure this part works is to have each of your logons on both PC's, and with the same password. This basically means when you log onto one of the PC's with a specific username and password, you are granted access to the other PC. You don't need to have file sharing set up at all either.
Hopefully that will help.

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