In reply to Mountain Lass:
Snow chains/socks/studded tyres on Foresters (and many Subarus) are a problem. The electronic differential doesn´t like them on all 4 wheels and you don´t want to go far with them fitted. On most models of Forester you can´t fit chains or socks anyway as there isn´t enough clearance to the struts unless you run narrower tyres.
I´ve used my Forester for the last 8 years in Bavaria and the alps and chains are the last thing you need!
For snow you want to immobilise the ABS by switching it off, this comes standard in Canada and some American states but not in Euro models though for some model years it was automatically switched off when you switch to snow mode (for automatics) or engage 4wd for manuals. Simple enough to add a switch though.
Jim