_ContactItem.User4 Property
Office 2010
Returns or sets a String (string in C#) specifying the fourth field on the Contacts form intended for miscellaneous use for the contact. Read/write.
Assembly: Microsoft.Office.Interop.Outlook (in Microsoft.Office.Interop.Outlook.dll)
The properties _ContactItem.User1, _ContactItem.User2, _ContactItem.User3, and ContactItem.User4 map to the fields User Field 1, User Field 2, User Field 3, and User Field 4 on the Contacts form respectively. These properties are explicit built-in String (string in C#) properties; users can use these fields for miscellaneous purposes for the contact.
