from README (translated):

Tool Folder is a simple application that allows the user to Restore/Create
all the necessary folders on the Memory Stick, Flash0 and Flash1.

Ideal for beginners who have just installed Custom Firmware or HEN and can't create all the folders needed in Custom Firmware/HEN.

Allows:

* Create/Restore all Memory Stick folders
* Create/Restore all Flash0 folders
* Create/Restore all Flash1 folders

Available in English and Spanish.
Tested in 5.00 M33-4

Credits:

* Programmed by Chiri_13
* Thanks to Dark_Alex for Custom Firmware's, VLF ...
* Artcrashover for the encouragement (He is to blame for this Homebrew xD)