IBM Documentation Offline has two components:
 - The IBM Documentation Offline app. This is a locally-installable offline version of IBM Documentation.
 - The documentation packages (one or more) that you install into the IBM Documentation Offline app. These packages contain the same documentation as is published online in IBM Documentation. 

The IBM Documentation Offline app for Windows is in this directory.

Instructions for using the app and packages, are in the version-specific peer directories.