1. General
   1. _MAX_NB_USER
   2. _MAX_NB_SESSION
   3. _MAX_NB_IP
   4. _MAX_NB_CONTACT_BY_USER
   5. _OUTOFDATE_AFTER_X_DAYS_NOT_USE
   6. _DISPLAY_USER_FLAG_COUNTRY
   7. _PUBLIC_FOLDER
      1. _PUBLIC_OPTIONS_LIST
      2. _PUBLIC_USERS_LIST
      3. _PUBLIC_POST_AVATAR
2. Admin
   1. _SITE_URL_TO_SHOW
   2. _SITE_TITLE_TO_SHOW
   3. _SCROLL_TEXT
   4. _ADMIN_EMAIL
   5. _ADMIN_PHONE
   6. _IM_ADDRESS_BOOK_PASSWORD
   7. _GROUP_FOR_ADMIN_MESSAGES
   8. _STATISTICS
   9. _CHECK_NEW_MSG_EVERY
   10. _FULL_CHECK
   11. _STOP_USE_THIS_SERVER_ADDRESS_NOW_USE_THIS_URL
3. Special modes
   1. _ENTERPRISE_SERVER
   2. _SPECIAL_MODE_OPEN_COMMUNITY
   3. _SPECIAL_MODE_GROUP_COMMUNITY
   4. _USER_HIEARCHIC_MANAGEMENT_BY_ADMIN
4. Special
   1. _FORCE_USERNAME_TO_PC_SESSION_NAME
   2. _ALLOW_AUTO_ADD_NEW_USER_ON_SERVER
      1. _PENDING_NEW_AUTO_ADDED_USER
   3. _PENDING_USER_ON_COMPUTER_CHANGE
   4. _NEED_QUICK_REGISTER_TO_AUTO_ADD_NEW_USER
   5. _PASSWORD_FOR_PRIVATE_SERVER
5. Security
   1. _MINIMUM_USERNAME_LENGTH
   2. _USER_NEED_PASSWORD
      1. _MINIMUM_PASSWORD_LENGTH
      2. _MAX_PASSWORD_ERRORS_BEFORE_LOCK_USER
   3. _CRYPT_MESSAGES
   4. _LOG_MESSAGES
   5. _LOG_SESSION_OPEN
   6. _FORCE_UPDATE_BY_SERVER
   7. _FORCE_UPDATE_BY_INTERNET
   8. _SEND_ADMIN_ALERT
   9. _PROXY_ADDRESS
      1. _PROXY_PORT_NUMBER
6. Users restrictions
   1. _ALLOW_UPPERCASE_SPACE_USERNAME
   2. _ALLOW_CONFERENCE
   3. _ALLOW_INVISIBLE
   4. _ALLOW_SMILEYS
   5. _ALLOW_CHANGE_CONTACT_NICKNAME
   6. _ALLOW_CHANGE_EMAIL_PHONE
   7. _ALLOW_CHANGE_FUNCTION_NAME
   8. _ALLOW_CHANGE_AVATAR
   9. _ALLOW_SEND_TO_OFFLINE_USER
   10. _ALLOW_USER_TO_HISTORY_MESSAGES
   11. _ALLOW_USE_PROXY
   12. _ALLOW_USER_RATING
   13. _ALLOW_EMAIL_NOTIFIER
       1. _INCOMING_EMAIL_SERVER_ADDRESS
   14. _FORCE_AWAY_ON_SCREENSAVER
   15. _HIDE_COL_FUNCTION_NAME
   16. _LOCK_USER_CONTACT_LIST
   17. _LOCK_USER_OPTIONS
   18. _FORCE_STATUS_LIST_FROM_SERVER
       1. _AWAY_REASONS_LIST
7. External authentication
   1. _EXTERNAL_AUTHENTICATION
      1. _EXTERN_URL_TO_REGISTER
      2. _EXTERN_URL_FORGET_PASSWORD
      3. _EXTERN_URL_CHANGE_PASSWORD
   2. _SITE_TITLE