permissions manager is a software supplies gui to manage security settings of files and folders. this gui is quite different than generic windows security dialog. it allows creating predefined sets of access control entries (presets) and applying these presets to file system objects. with permissions manager user does not need to pick up security principals from the list to assign security settings for a file or folder. it is enough to compose a preset only once and then apply it with a single click. normally xp home does not have permissions editor (like windows xp pro), so user have to use console tool cacls.exe. permissions manager supplies generic security control dialog (as an option) also. permissions manager is implemented as shell extension. this allows to put "security"/"easy security" property page to "properties" page of any object shell interacts with.