Logged In: YES
user_id=714452

This is by forced by the OS: to register the aggregator as the
default aggregator we have to write/create an entry within
HKey_Classes_Root named feed as an URL:feed protocol.
By default, there are not all users allowed to write to.

Workaround: start RssBandit.exe with the "Start as..." option
and choose the local administrator account. Then try again
registering RssBandit as the default aggregator. After that it
should work also without Administrator rights.

In the next release we will display better information about
that.