I am using the MFCMAPI tool to look at a user's mailbox, specifically their calendar, to determine which user of the few that had access to her calendar created an entry. Am I correct in my assumption that the PR_SENDER_NAME property is the name of the user who actually created the calender event? Kevin

Hi, Yes, you can use PR_Sender_Name_W or PR_Creator_Name_W to look for who is the creator. Thanks AllenAllen Song