Hi Roland,
Never, ever, Never run any program that professes to "clean the registry". Your problems will run far and deep.
Now with that warning that I have given for years out of the way, the solution to your problem shuld be as simple as re-running the installation from the Downloads page on this site. It will not overwrite your database or any of your data. It should find that mscomctl.ocx (thanks for the screenshot - big help) is missing or not registered correctly and replace it. A reboot may be required or not.
As for problem #2, you are not supposed to be able to open the backup database files. You can only open those using BD. This is expected behavior.
Let me know please if I can assist further,
Jeff |