Why is RemoveDirectory function not deleting the top most folder?

Question

refer: codeguru.com/forum/showthread.php?t=239271

When using the function below to delete folders, all folders, subfolders and files are getting deleted except for

Answer 1

Whilst you can delete a directory this way, it's simpler to let the system do it for you by calling SHFileOperation passing FO_DELETE. Remember that you must double null-terminate the string you pass to this API.