16. A data processing system as set forth in claim 15, further including means for storing a default language and wherein the command for instructing the processor includes an intended interaction language, and the means for selecting an interaction language selects from the intended interaction language and the default interaction language.
16. A data processing system as set forth in claim 15, further including means for storing a default language and wherein the command for instructing the processor includes an intended interaction language, and the means for selecting an interaction language selects from the intended interaction language and the default interaction language. 17. A data processing system as set forth in claim 16, wherein the command for invoking the application program is issued by another application program, and further including: means for storing a current interaction language; means for storing nested language information; and means responsive to the means for invoking the application program for setting the current interaction language to the selected interaction language and for saving a previous current interaction language in the means for storing nested language information.