Share internet connection with a Win XP machine

[JamesLJ]

Staying with my grandparents for a while, getting tired of switching the cable every time I want to get online (not to mention feel like I'm stepping on their toes when they want to get online and I'm on!). Here's what I have:

My MacBook Pro (The newish 17" from early 2009)
My Airport express
My ethernet cables (2)
My networking switch

Their Windows XP Dell from about 7 years ago
Their DSL connection with router
Their ethernet cable

I would like to network my computer to theirs so we can be online at the same time. How do I do it? (Other than talk them into buying an iMac, that is). I'm not opposed to going out and buying new equipment. One thing, I tried simply plugging everything into the switch. My internet connection runs fine, but their computer can't connect, which makes me think there's something relatively simple I can do in Windows to connect it...just don't know what it is! Please help. Thanks!

 

[Corrado33]

The switch SHOULD work unless some DHCP settings are messed up somewhere. What I would do is hook up your airport express, get wireless with your computer, then share the connection via ethernet to your grandparents computer.

Or they probably need DHCP turned on on their computer.