VMware Fusion 5 and want to resolve the ProxyEnable error

Hello,
I am using VMware Fusion 5 and want to resolve the ProxyEnable error while installing application but I can’t understand the error message.
How to solve it without having any trouble?
I am waiting for your help so prove solution as soon as possible.
Any help would be appreciated.
Thanks.
Application Error
Exception ERegistryException in module Sisu_3_0_336.exe at 00031BE4.
Failed to get data for ‘ProxyEnable’.
