Folder is ready for archiving question...

[sirrom]

I have a directory that contains image files on my windows 2000 server that cannot be set to “folder is ready for archiving” I had an instance today that all users could not access a db using these images. On investigations I found that the folder containing the images had the “folder is ready for archiving” ticked. I have been assured by colleagues that this had not been modified manually. So does anyone know if that this could have been modified my an automatic system process ? if so how can I turn this function off.
Thanks in advance.