First of all, figure out what brand/model the adapters are and install the network adapters in your computers. If Windows doesn't include the drivers for that card, go to the company's website and download them. Once the cards are installed with no conflicts, you need to connect them. If you are only using those two PC's on the network, you can get or make a crossover cable and plug them directly into each other (WARNING - you must have a "crossover cable," a standard one will not work.) Your other alternative is to buy a small hub (about $30 to $50) and use two standard network cables (RJ-45) to connect each computer to the hub. Your network is now complete. If file and print sharing is enabled in the network settings in the control panel, you should be able to right click on a drive or a folder and set the sharing properties for that folder. If you run into problems or need to network other operating systems besides Windows, post back and I'll see if I can help.