# Software Installation

To utilize the Cognex ViDi Sub Task block and ViDi devices in a Designer application, follow these steps:

1. Attach the Cognex Dongle to a USB port on the computer that will be used to develop the vision application.
2. Download the VisionPro 9.3 SR1 installer from the Cognex support page.
3. Download the Designer 4.0 installer from the Cognex support page.
4. Download the ViDi installer from the Cognex support page.
5. Install VisionPro software, release 9.3 SR1.
6. Install Designer software, release 4.0.0.
7. Install ViDi software, release 3.2.1.

Note:

- The VisionPro, Designer and ViDi software require that a valid Cognex Dongle be installed during all phases of operation. Any attempts to temporarily remove, substitute, or share a Cognex Dongle may cause your system to operate incorrectly, and may result in the loss of data.