Registry Diff and Update

I made some changes to the registry of our NetDCU9 WinCE board with the remote registry viewer. I want to transfer this settings to another NetDCU board.

So I have the following questions:
1. Is it possible to save the current registry
2. make a diff between the current and the old registry
3. only apply the diff to the other board

1. yes, use remote registry editor
-> Select entry you wish to export (left side)
-> Menu "Registry" -> "Export registry file...."
2. do this for both device and make a diff with e.g. winmerge and copy the diff to a new file
3. create an cab installer in VS08
-> the .reg file can be imported in the VS08 installer registry editor