A null modem cable is a special networkcable that allows two computers to have a direct connection. If you use a standard networkcable then it won´t work, if you use two pc´s or a pc and an Amiga won´t make any difference. But if you are using a router then there´s no problem, just plug your Amiga in the router with a normal networkcable next to the pc cable. Then you need to set up the software on Amiga side, probably Miami Deluxe. This way you can network the Amiga with the pc and get filetransfers at maximum 10 Mbit ...
If you just want to get software from the pc to the Amiga then there´s another option : use a pcmcia CF card !! Most pc´s have an usb cardreader so you just plug the empty cf card into the pc and fill it and then plug the card into your pcmcia slot using a cf-to-pcmcia adapter (cheap on Ebay in the laptop sections). The installation of software on Amiga side is easy, just download two programs from Aminet, one to recognize the CF card and the other one to use the Fat filesystem of Windoz. Very easy and very fast !!
