This utility for Windows NT/2k/XP can be used to modify time stamps of files and directories. You can either run ntouch from the command line and specify the files to be modified as separate arguments (with wildcards), or you can add files and directories using drag & drop from Explorer. Holding Shift adds all the files from a dropped directory, and pressing Ctrl adds the directory as well as all of its content. Hit Del to remove the selected files and directories from the list.
dtouch is the companion of ntouch to add or remove a specified time span to or from time stamps of files and directories. This could be useful i.e. to correct the time stamps of images created with a digital camera with a slow clock or in another time zone.