Some software packages such as ProgeCAD offer a Mobile USB dongle licence. This allows for the software to be loaded on a laptop and Office PC. The mobile USB licence is a single licence so that the software can only be run when the dongle is plugged in to either the laptop or PC. I am looking to purchase PVsyst but need to work on either my laptop (when travelling) or desktop PC in the office. Naturally I do not want to pay for 2 licences when I will only ever use the software one session at a time... Is this mobile USB dongle something that PVsyst could roll out? regards Ian Sinkins HID Australia Pty Ltd