'Check if current platform is Windows Vista or Windows Server 2008.
@return: C{True} if the current platform has been detected as Vista
@rtype: C{bool}'

def isVista(self):

    if (getattr(sys, 'getwindowsversion', None) is not None):
        return (sys.getwindowsversion()[0] == 6)
    else:
        return False
