There are two executables in the archive, one for Windows Explorer, (SetFolDate.exe), and one for file managers, (SetFolDateFM.exe) - they are not interchangeable.

To install the Explorer version, copy SetFolDate.exe it where you want it to reside and run it.  Click Install and it will be added to the context menu for folders - Done!
If you choose Install (No GUI), then an extra context menuitem will be created that when chosen does NOT open the GUI - it will use the last saved options.

To uninstall, run it again and choose Remove.
NOTE: You may need to use Run as Administrator if you have UAC enabled.

Instructions for Directory Opus installation are also included - done by dcwul62 
(http://www.donationcoder.com/forum/index.php?action=profile;u=421394)