Can be RescoViewer installed to the card?
Yes, it can. Many people use it this way. (Despite the performance suffers.) Notice a bit more complicated upgrade procedure in this case: • Move old RPV to the RAM • install new RescoViewer.prc (will overwrite the old version) • move RPV back to the card Tip for Zlauncher users: When you move Resco Viewer to the card then the thumbnail cache goes along with it. This works naturally only as long as you use single card.