It requires renewal every year, you might get a 2+ year auto renewal with certain web hosts. I'm having a devil of a time with Microsoft Office Live right now. They went from a free renewal/hosting to a paid. Lets just say that I almost lost my .com and I have to wait till Sept to get my .net back. The company hosting for microsoft is in Melbourne AU. It's cost me $40 in phone calls to Australia, $50 or more to rebuild my web page, $180/2yr hosting with Godaddy, and countless hours of aggravation. PICK A GOOD HOST COMPANY!!! One that will be around 10 years from now. I've been dealing with this problem since June and my site is still not back up.
My biggest mistake, other than going with microsoft, is I put the Admin email address on site, meaning tom@mywebsite.net. When microsoft tore down my website, I lost my email accounts. I could not change host companies because I could not receive any Admin emails. Keep your Admin email off site, your home ISP email address would be great. Melbourne IT then messed up my Admin email after I changed it, so that took a week to straighten out. I have to say that the CSRs at Godaddy have been outstanding. They have tried to help in every way they could. I will not blame Microsoft totally, but they sure aggravated the problem.