Prevent users from adding PSTs to Outlook profiles and/or prevent using Sharing-Exclusive PSTs

By default, users can add PSTs to their Outlook profiles and can use Sharing-Exclusive PSTs for storing SharePoint Lists and Internet Calendars. You can use this setting to limit users' ability to store mail in a decentralized fashion. You can block the use of PSTs completely, but be aware that blocking all PSTs disables Outlook features such as SharePoint Lists and Internet Calendar. If instead you allow only Sharing-Exclusive PSTs to be added to user profiles, PST usage is still limited but the Outlook features that rely on special PSTs are not disabled. The setting that allows Sharing-Exclusive PSTs to be added blocks users from creating new folders in the Sharing-Exclusive PST; copying existing mail folders from their default store to the PST; and copying individual mail items to the root of the PST.

No explicit registry values are set for enabled or disabled states.

• User
  Default location for OST files

  Windows7
• User
  Default location for PST files

  Windows7
• User
  Do not send meeting forward notifications

  Windows7
• User
  Large PST: Absolute maximum size

  Windows7
• User
  Large PST: Size to disable adding new content

  Windows7
• User
  Legacy PST: Absolute maximum size

  Windows7
• User
  Legacy PST: Size to disable adding new content

  Windows7
• User
  Permanently remove all deleted content from PST and OST files

  Windows7
• User
  Preferred PST Mode (Unicode/ANSI)

  Windows7
• User
  Prevent users from adding new content to existing PST files

  Windows7
• User
  PST Null Data on Delete

  Windows7
• User
  Upgrade only the default store

  Windows7