# Selecting a Program

When you select the Sentinel LDK Envelope project file with which the encrypted data files will be associated, all programs within that project for which data file encryption is enabled are displayed in the Program drop-down list in the Data Protection utility interface.

Select the relevant program from the drop-down list. All current data file and directory encryption information for the selected program is displayed in the Main pane.

If the data files will be accessed by more than one protected application:

1.Select any one of the relevant programs from the list.

2.Ensure that for all the other programs, the value specified in Sentinel LDK Envelope for the field Encryption key for data files is the same as in the program that you selected above.

### Related Topics

Data Protection Utility Window

Adding Files to a Project

Adding Directories to a Project