Wow, a cool registry repair tool for us flight simmers.
Remember, there's no better substitute for disk crashes, corruptions, accidental fatal deletions, etc., than regular, total and complete disk backups. There are many backup utilities out there. Find one and use it. Storage space for keeping your backups is dirt cheap these days. I recently bought a Western Digital 3 TB, external USB disk for $80. More disk backup storage than I'll ever need.
Steve