[Users] OvirtGuestAgent in windows

I installed it and made it an auto-start service, here is my logfile Traceback (most recent call last): File "C:\Python27\lib\site-packages\win32\lib\win32serviceutil.py", line 802, in ServiceCtrlHandlerEx self.SvcOtherEx(control, event_type, data) File "C:\ovirt-guest-agent\OVirtGuestService.py", line 95, in SvcOtherEx self.SvcSessionChange(event_type) File "C:\ovirt-guest-agent\OVirtGuestService.py", line 85, in SvcSessionChange self.vdsAgent.sessionLogon() File "C:\ovirt-guest-agent\OVirtAgentLogic.py", line 237, in sessionLogon self.sendUserInfo() File "C:\ovirt-guest-agent\OVirtAgentLogic.py", line 210, in sendUserInfo self.vio.write('active-user', {'name': cur_user}) File "C:\ovirt-guest-agent\VirtIoChannel.py", line 154, in write args = _filter_object(args) File "C:\ovirt-guest-agent\VirtIoChannel.py", line 92, in _filter_object return filt(obj) File "C:\ovirt-guest-agent\VirtIoChannel.py", line 83, in filt return dict(map(filt, o.iteritems())) File "C:\ovirt-guest-agent\VirtIoChannel.py", line 87, in filt return tuple(map(filt, o)) File "C:\ovirt-guest-agent\VirtIoChannel.py", line 89, in filt return _filter_xml_chars(_string_check(o)) File "C:\ovirt-guest-agent\VirtIoChannel.py", line 51, in _string_check str.encode(sys.stdout.encoding, 'strict') TypeError: encode() argument 1 must be string, not None