The phrase appears to be a specific label or button often associated with software installers or download managers . While it doesn't refer to a single universal product, it is most commonly found in the following contexts:

: As a "Download Now" feature, it is designed for immediate execution, often bypassing intermediate "Save As" prompts to speed up the user experience.

: This is frequently the name of a button or a download link for a version 3 (V3) release of a software "setup" file (e.g., setup.exe ).

To give you more specific details, could you share or software program you see this button on?