[libvirt-users] Windows guest and virtio serial port

[Tadas]

I'm not sure, if it's correct mailing list to post this problem to.

I'm having problems with Windows guest and virtio serial port.
According to this manual:
http://www.spice-space.org/page/Whiteboard/AgentProtocol
I should get a named pipe on my guest VM after I create VirtIO sedial
device and spicevmc channel.
This works without any problems on Linux guest:

ls /dev/virtio-ports/
com.redhat.spice.0

But on Windows guest I can see no such pipe:

PipeList v1.01
by Mark Russinovich
http://www.sysinternals.com

Pipe Name                                    Instances       Max
Instances
---------                                    ---------       --------
-----
InitShutdown                                      3               -1
lsass                                             4               -1
ntsvcs                                            3               -1
scerpc                                            3               -1
Winsock2\CatalogChangeListener-2b8-0              1                1
epmapper                                          3               -1
Winsock2\CatalogChangeListener-1ac-0              1                1
LSM_API_service                                   3               -1
TermSrv_API_service                               3               -1
Ctx_WinStation_API_service                        3               -1
eventlog                                          3               -1
Winsock2\CatalogChangeListener-174-0              1                1
atsvc                                             3               -1
wkssvc                                            6               -1
Winsock2\CatalogChangeListener-16c-0              1                1
SessEnvPublicRpc                                  3               -1
spoolss                                           3               -1
Winsock2\CatalogChangeListener-550-0              1                1
trkwks                                            3               -1
NlaSvcTask                                        1               -1
srvsvc                                            5               -1
browser                                           3               -1
Winsock2\CatalogChangeListener-710-0              1                1
Winsock2\CatalogChangeListener-228-0              1                1
Winsock2\CatalogChangeListener-230-0              1                1
HPUPDMon                                          1                1
MsFteWds                                          2               -1
PIPE_EVENTROOT\CIMV2SCM EVENT PROVIDER            1               -1
TDLN-3772-41                                      1                2
TDLN-3216-41                                      1                2


virtio serial drivers are installed on Windows guest VM.
What I am missing here?
Thank you.