TinyTask is a minimalist PC automation app you can use to record and repeat actions. As the name implies, it's unbelievably small (only 36 KB!), ultra compact, and 100% portable.
The "tinytask_setup.exe" option is a standard Windows installation file. It installs TinyTask to its own Program Files folder and Start Menu app, optionally adds a desktop icon, and also includes an uninstall capability. This is the typical application package you would get for commercial software.
TinyTask is supposed to watch for the key presses Break or ScrollLock or Pause (the emergency stop keys), and immediately stop playback. Another method is the "Playback Hotkey" combo that should terminate a playback, which is "Ctrl + Shift + Alt + P" by default (note the 4 keys all held down).