This message is common when running on Windows 7 - 64 bit OS. You will need to launch the Aperture Client 9 with, 'Run As Administrator'. This should allow you to run this script from the Aperture Client. Please give this a try.
Karl.
Karl Seelaus | Technical Support Analyst III, Avocent | Aperture Infrastructure Management
Emerson Network Power
www.EmersonNetworkPower.com