The extension should be .vbs - it is a visual basic script... Windows Scripting will read and execute it when it sees it in your Startup folder.
If it's the first time running on your system, be prepared for a long boot session: it will look everywhere and clean up anything ending with .tmp and then tell you hold many megabytes it's found and deleted. Sometimes your AV sees it as something bad: tell AV it's okay. Hey, you have the source code: you can easily see it's not sending back details of your personal life to the mother ship. :biggrin:

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks