Canon LBP7660Cdn Manual page 841

Service are different. Check the file.
The application cannot be started because the applet name the application is trying to register in the
Problem
Applet Viewer Service differs from the applet name included in the application file.
Action Since it is necessary to make corrections to the application file, contact the application developer.
Error: <Error Details>
Problem An error has occurred for some reason. See <Error Details> for details.
If the solutions given in <Error Details> are unclear, contact your local authorized Canon dealer or sales
Action
representatives.