1)   Snapper 3.0.21
Snapper reads the directory of a disk which is then saved as a "snapshot", so that later you can compare it with a new snapshot of the disk and see what has changed. The results are easy to see with colour highlighting in an Explorer-style interface.
snapshot, file, files, directory, dir, directories, tree, trees, folder, folders,

 2)   Difference Between Two Dates Software 7.0
Find the number of years, months and days between two dates.
subtract, date, time, year, month, day, days, years, months, calculate,