I have a desktop with a all in one printer cani hookup my laptop to print on the printer maybe share the print

They have wireless printer capability now and of course with a network lots of people share the same printer. So it can be done. Ask your geek friends just how you should handle your specific set up - or hope an answer comes along more detailed than this one.

another way to do this is with a printer switch. it's a box with a knob that switches between A and B. but instead if connecting two printers to one computer, just reverse the cables so one computer is on A and the other is on B then run the printer into the port for the computer. it's easier then messing with a network. i do this at home and at work and it works fine.

If the computers are located in different rooms, he only way you could share one printer is through wireless network. Yet, the computer to which the printer is permanently connected should be on all the time. Windows have the instructions you need for setting up sharing procedures. However, keep in mind that it would be less expensive to buy another printer than installing a wireless network Hope this helps.