V2.01 probably wont work with 64 bit.
You would be better downloading v5.00.72 from here
http://www.airnavsystems.com/download/ANRB/ANRB50072Setup.exeDon't install to the program files location install to somewhere like c:\Airnav.
Also download and unzip the 64bit drivers from here
http://www.airnavsystems.com/download/ANRB/drivers/ANRB64bitDrivers.zip. Create a folder on your computer and unzip the drivers into it. Remember where it is as you will need to direct the installer to it later.
Go to Computer/Devices and Printers and you will see your Radarbox under unspecified, you may need to scroll down to see it. Right click on it then click on Properties.
On the window that opens click on the Hardware tab/ Click on the Properties button. On the new window click on Change Settings
On the new window click on Driver tab then Update Driver.
On the window that opens up click on Browse My computer for Driver Software.
On the window that opens browse you computer for the folder you unzipped your drivers too. The press Next and the drivers will install and all should be good to go. Unplug your USB cable then plug it in again if need be to finish the process. Then exclamation mark should be gone and the software should start
Alan