IBUndelete v3.6 are included.
IBSurgeon Pack is a complete set of tools to solve emergency problems with InterBase or Firebird databases:
recover corrupted databases (IBFirstAID+FBFirstAID),
extract data from corrupted backups of InterBase/Firebird databases (IBBackupSurgeon),
undelete occasionally deleted records (IBUndelete),
perform analysis of InterBase/Firebird databases statistics and get recommendations for database regarding performance bottlenecks and index problems (IBAnalyst).