Issue solved!
I uninstalled AIR with the existing uninstall app in the application/utility folder. The I downloaded the latest AIR from Adobe web. It became a greate upgrade from 1.0.8 to 3.9.0. Now help works fine in the applications.
However, an indication of the help app upgrade fails everytime the help app is started. This is not a blocking issue at the moment.
Thank you for the support!
/BePe