I have two USB adapters and cannot get either to work. I know I may be a little dense. I am trying to link a Laptop (which has its own adapter) to my PC and thereby to my Printer, but I give up!!

I have yet to see a stable ad hoc network. It will be best if you use a wireless access point or router to facilitate your wireless network.

If you still want to proceed without an access point or router, check out this Netgear info about ad hoc: http://kbserver.netgear.com/kb_web_files/n101519.asp

Also, here is a guide to networking: http://www.pcbuyerbeware.co.uk/Networking.htm