Problems with software quality adequate for the price

As noted already by mehrern other participants makes the software considerable problems (Windows XP and Windows 7) works installation and the device is also recognized but a transfer is not possible. One solution is the instrument against switching on the PC (he must have been died running from the power supply) to be connected, then work out the transfer.
As further deficiency I feel that only 3 slides go to insert in the very awkward to open sleigh, this prolonged the time but significantly.
But the quality of the scanned images from film and slides is nothing auzusetzen actually. Other devices or professional companies are just much more expensive.