Are you trying to an old Flash game/file, or are you trying to install the software to create animations?
If you see a post offering a "full version" or "crack" with that title, please be extremely careful: adobe-flash-professional-34-0-0-465-full-version-2023
The specific version string you mentioned ( 34.0.0.465 ) is often associated with the last standalone installers for the Flash Player, but Adobe does not release "2023 Full Versions" of Flash Professional under that name. Are you trying to an old Flash game/file,