Microsoft Outlook 2010 MAPI Reference has been updated on MSDN!, which’s designed to offer developers the Office Outlook 2010 Messaging API (MAPI) Reference, namely the messaging architecture for Outlook 2010. This release includes documentation for the binary stream structure for the PidLidPropertyDefinitionStream property. This property specifies definitions of all custom fields and data-binding settings for built-in fields of an Outlook item. There’s now a code sample in How to: Check the Version of Outlook that shows how to check version information of an installed version of Microsoft Outlook, if the installed version is Outlook 2010, Outlook 2007, or Outlook 2003. The code sample also returns a pointer to a Boolean variable that indicates whether a 64-bit version of Outlook is installed.
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