Hi,
I just found the problem and fixed it.
I have been doing all points (see 1:st post) logged in with RDP.
As usual that is not an good idea when working with BE products when doing updates or installations.
The problem was that a popupwindow* showed on the console and hung the last part of the installation.
When running the installation from the console and klicked "OK" on the popup the installation was finnished without errors and the service started fine.
* The window warned that there was no standard e-mail client on the server, just klicked "OK"