[Users] Tried oVirt Guest Agent for Windows, no luck

Hello, I'm trying to install ovirt guest agent for windows in a Windows 7 from the files in ovirt-guest-agent.git. The .exe is built and the service is created, with cmdline_style='pywin32' in setup.py, but it triggers an error at start. The cryptic message when executing net start OVirtGuestAgent is: A service specific error occurred: ***. Is there a way to bring it up? I'm also having problems to get virt-viewer to connect to the node. I suppose is a problem of authentication. Tried virt-viewer --connect qemu+tcp://hostname/system?auth=sasl.digest-md5 to no avail. Regards, Jose Garcia