Making a wireless router?

At work we have a non-wireless router. Apart from buying a wireless router, is there a way to make it wireless, or something we can plug into the computer to broadcast the signal perhaps?

You can run an ad hoc network off that computer through its hardware, and then connect the other devices to the its network. The computer will have to be on all the time to use the network, and it might be slower than using a proper router - you can get one for under £20 on Amazon.

I'm not sure it has the hardware to do much, and it's Windows XP

I've considered replacing the router as a last resort given that it's not really up to us to be swapping things out and I think we'd have more luck with adding stuff or using what (little) is already there. Can a wireless router be plugged into the current router?

That shouldn't stop it, if it has the hardware to pick up wifi then it can become a router itself - Google "Windows XP ad hoc network" and there should be plenty of instructions around.

You should be able to plug a new router into the existing one too, just connect it with an Ethernet cable.

That shouldn't stop it, if it has the hardware to pick up wifi then it can become a router itself - Google "Windows XP ad hoc network" and there should be plenty of instructions around.

You should be able to plug a new router into the existing one too, just connect it with an Ethernet cable.

Before you do this, make sure that the wireless router is on the same subnet as the normal router. You will also need to turn off the DHCP server on the wireless router.

I'm not sure it has the hardware to do much, and it's Windows XP