Quick question, is there a reason why you must have .NET installed in order to download the second package containing the Catalyst Control Center?
https://support.ati.com/ics/support/default.asp?deptID=894&task=knowledge&folderID=27
"Note you must have Microsoft .NET Framework installed prior to downloading and installing this file."
What exactly is .NET for? 
https://support.ati.com/ics/support/default.asp?deptID=894&task=knowledge&folderID=27
"Note you must have Microsoft .NET Framework installed prior to downloading and installing this file."