Please run the AirParrot installer one more time. This time, use a Command Prompt on your computer to launch the installer. We will expect to see the same error, however when launching the installer with the command below, you will also generate an installation log. Please send us that log so that we can take a closer look at what is happening on your end.
**You may need to change the name to match the download you have. **
msiexec /i AirParrot64.msi /l*v log.txt
This will create a file called log.txt. You will first need to navigate to the folder where you have the installer saved, for example, by typing "cd Downloads" to switch to your Downloads folder. The log file will be created in the same folder where you have stored the installer.