Follow these steps to activate your Offline Subscription License:
Open a web browser and navigate to the Quest Licensing Portal:
https://licensing.ism.quest.com/
Sign in with your Quest account.
Register your license number if it has not already been registered.
Locate the license and select Download Offline License.
Download the license XML file to your computer.
Launch the Quest application.
At startup, click Add Offline License.
Select I have an Offline Subscription License File (License XML).
Browse to the downloaded XML file and select it.
Apply the license.
Verify that the application launches successfully and that the license status shows as activated.