This service menu uses the file system attributes to prevent user for delete very important files and folders, such as music, video, school works, company databases, etc..
It depends on the "chattr" command provided by the "e2fsprogs", and works only with ext2, ext3 and ext4 file system.
Only the root user can lock or unlock the files, and when a file is locked, not even root can delete it.
The use is pretty simple. Lock the files that you want to protect, when you need to modify a protected file or add a new file to a protected folder, just unlock it, when you finish working with it, lock it again.
Just uncompress the file to:
And restart Dolphin and Konqueror.