I've downloaded the Quake 4 demo.exe from multiple locations and everytime I run the .exe I get the error "Quake4_demo.exe is not a valid win32 application".

Breaking down how to fix "Application Has Unexpectedly Stopped Working" in MW2's PC beta.

If you receive OAWrapper.exe Application error or if it is taking high CPU usage, fix the issue using these proven solutions.

We discuss what you can do if you see the Unsupported 16-bit Application error on Windows 11/10 PC, after knowing why you see this message.