Time for the bad news.
An automatic Windows update has completely fucked up the Server. Im at work atm and could only have a short look on the problem. It appears that for some reason the chars got damaged and most of the installed server tools and the settings are gone. Even the desktop settings are gone and windows created a new one.
The good news is that the CF server version appears to be still working and i have a one week old backup of the chars. Ill try to fix as much as possible whem work is over.