Download the (not the browser plugin). Run the projector application. Go to File -> Open and select your application's .swf file.
It starts the same way for everyone. You are looking for a nostalgic cartoon, a bootlegged movie streaming site, or perhaps a simple browser game from a decade ago. You click play. The screen goes black, and then, the message appears in stark, sans-serif text: this application requires flash player v90246 or higher
It drained laptop batteries and lacked mobile support (famously rejected by Steve Jobs for the iPhone). Proprietary: Download the (not the browser plugin)
"This Application Requires Flash Player v9.0.246 or Higher": A Legacy Fix Guide (2026 Edition) It starts the same way for everyone
Note: This trick is also useful if you want to downgrade Flash to a specific legacy version for compatibility reasons, though Adobe generally warns against downgrading due to security risks.