Slow Children

We have a need to easily determine if a directory with subdirectories full of hundreds of LabVIEW vi's has been modified. We would like to be able to check if a "baselined" directory of files matches with a copied version of the same directory. We have experienced problems when someone modifies one or two vi files out of several hundred without notification, then the resultant code doesn't work properly when executed as some later time. For diagnostic purposes we would like to be able and check quickly if someone actually has modified any vi without laboriously reviewing each vi by hand. We were thinking of some stand alone software possibly a LabVIEW vi that could check automatically the copied version against the baselined version.