How do I install IMU Mixer V4

How do I install IMU Mixer V4? I have a 6DOF V4 and have it connected via Bluetooth. I downloaded the IMU Mixer V4 .zip file and extracted it but all I get is an error message saying

“Component MSCOMM32.OCX or one of its dependencies not correctly registered: a file is missing or invalid.”

The file MSCOMM.OCX is clearly present but the app file is not able to find it.

I am running a PC with Window’s Vista.

Thanks

Scott