I have a C application that accesses the root folder of a user's mailbox...doing the following... HrMAPIOpenFolderEx(lpMailbox, '\\', szStoreFolderPath, &lpRootFolder) where I set szStoreFolderPath equal to @PR_IPM_SUBTREE_ENTRYID. This has worked fine with old version of Outlook and Exchange, but I am getting an error accessing the mailbox using Outlook 2007 to Exchange 2007 (we have loaded the MAPI/CDO onto the PC). It works if I put @PR_IPM_INBOX_ENTRYID into the string, szStoreFolderPath.
