Hello,
The reason why we recommend using the admin account is because it is the easiest way to get going. If that is not and open, try:
Registry: Set the permissions to the following (including stuff underneath)
\HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Texas Instruments
\HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\GODSP
\HKEY_CLASSES_ROOT
And also for files, everything inside the CCS Installation directory.
After these changes, if *should* work. The reason why I say 'should' is because CCSv3.3 is not officially support on Windows 7. It was never tested on it and to be honest, people's success with being able to use it with Windows 7-64 has been hit or miss (though mostly a hit).
Good luck
ki