Alright i will do that, thank you for your help :)

I tried running them as an Adminitstator already, and the MANIFEST file is present aswell. i dont get why it doesnt work :/

I just got a new computer and i use Windows 10 ( i had the same problem with my old computer )

i am using the Steam version

In the screen where i have to type "y" or "n" to select the correct application, it asks me if "sonic2app.exe is the right application and when i press "y" because it is the right application it tells me "invalid application" and immediately closes. help