When I try to install a Windows service:
c:\\Windows\\Microsoft.NET\\Framework64\\v4.0.30319\\installutil
I get, what looks to be, some success messages and som
It turns out that the install might, or probably will, fail if that service is highlighted in the Services applet. It's safest to just close the Services applet, install the service, and then re-open the Services applet. It's really stupid.
Also, make sure to run the console as admin.