The default security settings in Windows Vista disallow non-elevated administrators and all non-administrators from creating symbolic links.
But what is a "non-elevated administrator"? This is not a term I'm familiar with.
In my experience, an "administrator" on a Windows system is a user who is a member, directly or indirectly of the Administrators group.
But I wasn't familiar with the notion that administrators could be "elevated" or "non-elevated".
I must go do more searching, I guess.