I'm unlucky.
Here the latest logfiles.
I can mount and browse system disk to another vm (see attached image).
Boot.ini is now:
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Windows Server 2003, Standard" /fastdetect