·Execute the Project » Add Existing Item command (or the corresponding context menu command on the project in the Solution Explorer), selecting the mtxml file containing the original application program. The file will automatically be copied to the project directory.
·Open the file by double-clicking it
·Select the application program node in the project window
·Modify the Application Version (and if you want the Application Number)
·There will be a reminder message that this modified the unique key of the application program and thus requires an update of all IDs
·Again select the application program node in the project window and choose the Update IDs command from the context menu
·Be sure that the MinEtsVersion property of the application program matches the target ETS version of the MT project.