Please follow the below mentioned steps to uninstall the iPublishCentral reader.

• Install the application "iPublishCentral Cleaner" attached below.
• Run the iPublishCentral cleaner application. 
• Click on the Start button to open your Start Menu. The Start button looks like this: 
• When the Start Menu opens click on the Control Panel menu option.
• When the Control Panel window opens click on the Uninstall a program option option under the Programs category.
• This option is shown by the arrow in the image below.
• If you are using the Classic View of the Control Panel, then you would double-click on the Programs and Features icon instead.

•  You will now be at the Programs and Features, or Uninstall or change a program, screen as shown below. 

• Look through the list of programs for iPublishCentral Reader and then left-click on it once so that it becomes highlighted.
• Once you highlight it you will see two new options next to the Organize and View button called Uninstall and Change. 

• Control Panel -> Programs -> Program and Features -> Select “iPublishCentral Reader” and click on “uninstall”.

Note:AIR application should be version 1.5 and above.