I have two different CDs from two different MRIs. Look for a folder named Viewer. Open it and look for a file with the extension .exe. Double-click on the most likely-looking one. On one of mine, it's in Data>Viewer>AliDiskViewer.exe. That was a Symphony model machine, don't know who the manufacturer is. On the other, it's in Viewer>DCMVIEW.exe. That one was a Hitachi machine, and the software is the Dicom Viewer.