The cabling part is just a Cat5e Crossover cable of whatever length you need.
The TCP IP part is just configuring both Network connections:
192.168.200.1 and 192.168.200.2 will do fine as addresses,
make each subnet mask 255.255.255.0, and leave both Gateways blank.
The Windows part I will leave to a Windows user, once you mention what Windows is where.
The Tek-tips part would be "Help Connecting Two PCs" as a title and listing vendors, models and OS in the body.
I tried to remain child-like, all I acheived was childish.