Sets the extra information that was set for the given
argument in the wizlist.
If the argument is an object, then the data is set in the creator
entry for this object.
If the argument is a string, it is the name of the entry to be
set, e.g. a uid.
If the argument is a number (should be 0 then), the data is set
in the default wizlist entry. It can be used to store data for
the lifetime of this driver run, like the time of the last
reboot.
The function causes a privilege violation.