Sharing files with older PCs

So you’ve got your fantastic new Windows 7 PC and it is – fantastic – but you’ve not got all the PCs in your house running on Windows 7 yet, in fact chances are you’ve still got some XP PCs.  Just how do you share with those PCs?  Well the How to geek has a handy guide, it’s in my book too (along with everything else you need to know to get the most out of Windows 7) in chapter 22.