You may customize the list of internal messages used by the executable. For example, you may create localized versions of these messages for different countries/locales.
Note that some messages are parameterized. For example, the message "Service install: %s" is displayed when a Win32 service executable is installed and contains one parameter, referenced by %s. When customizing these messages, please ensure that the parameters are retained, otherwise the messages may become unintelligible.
Customization of messages are project-specific. If you need to reuse customized messages, the best way is to open a previous project containing the customized messages, and invoke File... Save Project As... to save the customized messages to another project file.