This action event can be used to start an external program. You can choose whether the program should be started synchronously or asynchronously, and you can also enter command line parameters that should be passed to the external program.
In case the program to start is an executable compiled by Hollywood Designer that supports multiple languages, you can tick the checkbox "Run program in current language" to make this program launch in the language that is currently active in the project that launches the external program. Note that languages in both Hollywood Designer projects, the launching one and the launched one, must be defined in the same order for this feature to work.
If the global option "Append language name to all external programs" has been enabled in the project properties dialog, you can choose to tick the "Do not append current language to program name" checkbox in order to forbid appending the current language name to the program to start. See Project properties dialog for details.
If the global option "Allow user to fix broken program links" has been enabled in the project properties dialog, the user will be prompted to select an alternative program in case the one specified here in the action event does not exist any longer. See Project properties dialog for details.