You can't launch programs from within LW such as installers. The launch function only works with video, audio & image files.

For fast & easy access, go to your LW Library window, select Saved Files folder & press the Explore button. Sample image here: Using Library Explore button to access downld folder (click on link) & the folder will open up for you. Then open from there.

Oh so I see you're a miserly prig. You can't support LW so you want to "steal" software & then expect us to help you.