# Running Sentinel LDK Envelope Using a Command Line

You can run Sentinel LDK Envelope from a command-line prompt. This is very useful if you want to re-apply protection to a program but you have not made any changes to the program that require you to work in the Envelope graphical interface.

To access the command-line version of Sentinel LDK Envelope, go to:

...\MacOS\VendorTools\VendorSuite\envelope_darwin

To start the command-line version of Sentinel LDK Envelope, type envelope_darwin in the command line, followed by one of the switches listed below.

## Command-line Switches

Use the following switches with the command-line version:

-h / --help | Displays a list of the available command-line parameters.
-p / --protect <project> | Uses the specified project as input data for the application-wrapping process. All the files included in the project will be protected.
<project> | Command-line version launches the GUI version with the specified project running as the current project, assuming that the GUI application is in the same path.

### Related Topics

Introduction

Binary Options