Ensure you have removed all Eagle Cam drivers per the instructions found in the manual before attempting to install this latest driver version.
After downloading the file, unzip the file into an empty folder or directory on the hard drive. (If you cannot locate the file you downloaded, use the Windows Find command to search for the Eagle120C.zip program on your hard disk.)
Run the SETUP.EXE program and follow the onscreen directions (This program will be found in the folder you unzipped the files to in step #1)
Refer to the instructions in the users manual for more details.