> > I'm not sure if this is the same
> > question as the recent thread about MTP access (which I confess I
> didn't
> > fully understand),
>
> I think it is the same question. Not Ztree assigns a drive letter but
> the operating system (Windows 7). And whether it does so depends again on
> how the external device is reporting it's device type to Windows 7. So
> you should look at Android whether you can change some settings (I don't
> have any experience with Android). If possible you should set it to MSC
> mode (and not MTP):
> http://mp3.about.com/od/glossary/g/Msc-Definition-What-Is-Msc-Mode.htm
>
> Jürgen.
And here's that website's definition of MTP mode.