Download the ZIP file.  Unzip it into a convenient folder, and double click Setup to install. File size is about 550Kb.
Download ENC Viewer

ENC Viewer has been developed as an exercise in understanding the S57 data-base format.  Comments are appreciated :

Get your ENCs here:
 NOAA ENC Download site

ENC Viewer was created with the assistance of utilities from:

Axialis Software - Icon, Cursor and Screensaver Authoring Tools for Windows

NDepend - Understand and control the architecture of your .NET applications