| 0 | User Home—Directory that contains the personal files of the current user. This directory is a readable and writable directory accessible to a single user of the system. | 
| 1 | User Desktop—Directory that contains files located on the desktop of the current user. This directory is a readable and writable directory accessible to a single user of the system. | 
| 2 | User Documents—Default directory for saving the documents of the current user. This directory is a readable and writable directory accessible to a single user of the system. | 
| 3 | User Application Data—Directory that contains data for the system applications of the current user. This directory is a readable and writable directory accessible to a single user of the system. | 
| 4 | User Preferences—Directory that contains the preferences for the current user. This directory is a readable and writable directory accessible to a single user of the system. | 
| 5 | User Temporary—Directory that holds temporary files for the current user. This directory is a readable and writable directory accessible to a single user of the system. You cannot change the path to this temporary directory. | 
| 6 | Public Documents—Directory that contains documents accessible to all users of the system. This directory is readable and sometimes writable. | 
| 7 | Public Application Data—Directory that contains data for system applications accessible to all users of the system. This directory is readable and sometimes writable. | 
| 8 | Public Preferences—Directory that contains preferences common to all users of the system. This directory is readable and sometimes writable. | 
| 9 | System Core Libraries—Directory that contains the libraries that come with the operating system. This directory is typically read-only to the standard user of the system. | 
| 10 | System Installed Libraries—Directory that contains libraries a user installs on the system. This directory is typically read-only to the standard user of the system. | 
| 11 | Application Files—Directory that contains files of applications installed on the system. This directory is typically read-only to the standard user of the system. | 
| 12 | Boot Volume Root—Top-level directory used to start the system. This directory is typically read-only to the standard user of the system. | 
| 13 | Public Cache—Directory that stores files the MathScript RT Module installs and shares among all users for the purpose of making certain operations faster. This directory is readable and sometimes writable. |