Thanks very much for these.
On a tangential note: I am trying to make some public skydrive files available to folks by generating a link and sending it to people... bit they report that they are then asked for a security code which is to be emailed to my personal email address, i.e., a dead-end for them. I can't see any setting where I can change this, and Microsoft is unresponsive. How did you manage to make your link work without a hitch>