Hello again,
Ged Murphy wrote on behalf of Filip:
There was several hive format versions. For me the "old format" is the one that was used in pre NT4 version and that's the only one that couldn't be accessed by cmlib. As far as I know the "fast indexes" were added in W2K and that's really the only new feature that mkhive generates, so there's no reason why the hives wouldn't be Windows 2000 compatible.
Christoph told me that they already tried to use cmlib to generate the hives and it didn't work, but I have no detailed information.
The harder part is testing though. The best way to test the hives is to use the regedit Load Hive function and attached kernel debugger with breakpoint on the hive loading function.
It seems that there are some developers for this job, so I would reject my offer...
Matthias