fsfreeze support in qemu-ga win32

(resending as plain-text)

To Michael Roth and KVM devs,

It is finally nice to be able to have a guest agent for Windows. I really appreciate your collective efforts.

Is it possible to have fs-freeze-thaw support in it too?

Trying to use Libvirt's snapshot feature with --quiesce switch which depends on guest-fsfreeze* commands. So with this guest agent the snapshotting fails with the error:

error: internal error unable to execute QEMU command 'guest-fsfreeze-freeze': this feature or command is not currently supported

/Abbas.