![RetroTech Chris on Twitter: "So, this is fun! I connected a DOS PC to a Windows XP system using a null modem cable. I can browse the web and share files! https://t.co/2phGZqd6SZ" / RetroTech Chris on Twitter: "So, this is fun! I connected a DOS PC to a Windows XP system using a null modem cable. I can browse the web and share files! https://t.co/2phGZqd6SZ" /](https://pbs.twimg.com/media/FkOLOQHXgAAsZZG.jpg)
RetroTech Chris on Twitter: "So, this is fun! I connected a DOS PC to a Windows XP system using a null modem cable. I can browse the web and share files! https://t.co/2phGZqd6SZ" /
![Virtual Null Modem - Two virtual serial ports connected with each other via virtual null modem cable | AGG Software Virtual Null Modem - Two virtual serial ports connected with each other via virtual null modem cable | AGG Software](https://www.virtual-null-modem.com/box.jpg)
Virtual Null Modem - Two virtual serial ports connected with each other via virtual null modem cable | AGG Software
![Virtual Null Modem - Two virtual serial ports connected with each other via virtual null modem cable | AGG Software Virtual Null Modem - Two virtual serial ports connected with each other via virtual null modem cable | AGG Software](https://www.virtual-null-modem.com/virtual-null-modem/virtual-null-modem-features-s.gif)