"Yes!" Elias punched the air. The file was small—only a few kilobytes. A driver file, pure and simple.
The UC JS704S2 is a USB joystick that requires a driver to function properly on Windows 7. ucom uc js704s2 usb joystick driver win 7 download link
Specifically for models with vibration support, compatible with Windows 7 (32-bit and 64-bit). ucom uc js704s2 usb joystick driver win 7 download link
Try Windows Update and built-in drivers: ucom uc js704s2 usb joystick driver win 7 download link