'Estimate the install date of this system.'

def Run(self, unused_args):

    subkey = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, 'Software\\Microsoft\\Windows    NT\\CurrentVersion', 0, _winreg.KEY_READ)
    install_date = _winreg.QueryValueEx(subkey, 'InstallDate')
    self.SendReply(rdf_protodict.DataBlob(integer=install_date[0]))
