In many cases the application has started successfully, the usual cause of the message is that the Registry should not have any DDE commands for the application. The user can launch files with Windows Explorer. If the file is double clicked the default Verb is used. If the file is right clicked one of the popup menu items, which include all the action verbs, must be chosen. The commands themselves are in sub-keys under the command Verbs according to the following pattern.
Underlined words are registry key names.
Verb Verb e.g. open. There is no default value. The value is the command line to start the associated application, consisting of the application path followed by the command line parameters. The command line parameters are usually different for each Verb. The application is usually the same for all the Verbs, but it need not be.