You can try this:
You only need to locate your databases on your tape backup in the xampp\mysql\data
directory and copy either this directory to your currently installed XAMPP or just copy over the individual database file to your currently installed XAMPP xampp\mysql\data
The databases are in individual directories named after the database itself.
If you had a database name wordpress
then that database would be contained in a directory called wordpress
in your mysql data directory
If this was the deleted database you mentioned then all you need do is locate and copy this directory over from your backup to your current mysql data directory.
Take a look at the new DeskTopXampp
launch control posted by ridgewood
http://community.apachefriends.org/f/viewtopi ... 967#103967
launch control for XAMPP
is available here:
I highly recommend DTX.