To Install the VistaScan Software for the UMAX Scanners
Double-Click the vs355su.exe file.
This will decompress several folders to your computer (in the same location as the .exe file)
Look in the new folder named "DISK1" and Double-Click the file named "VSSETUP.EXE"
This will install the software you need. You will be asked to Restart once the software is done.