This version of the driver has the VividScan SCSI card support. The newer drivers don't. If you are having problems getting the Umax driver installed, it's because its the wrong driver. Use this one instead. Also, what led you to UMAX was probably the DTC number fromt he plug-n-play card. Turn Plug-n-play off at the card and install this driver instead. Only works for older Komodo scanners and VividScan cards.