 it is possible to count on certain additional behaviors; but trying to do so is (1) prone to spurious changes and breakage in different OS versions and types, since much of this is undocumented; and (2) will probably just make your life <em>more</em> difficult anyway, not less. Honestly I (ygoldfel) designed it for ease of following as opposed to exactly maximal freedom of capability. So... just follow these.)</p>
<p >Firstly, as already stated, it is not possible to try sending a handle sans a blob; and i