http://schemas.microsoft.com/mapi/ Namespace
The http://schemas.microsoft.com/mapi/ namespace is used to directly access MAPI properties in the Microsoft® Exchange store. The namespace consists of three sub namespaces: proptag, id, and string. The following table shows these subnamespaces and their descriptions.
| Sub Namespace | Description |
|---|---|
| proptag | This namespace is used to access
Messaging Application Programming Interface (MAPI) properties in the Exchange store. You can access these properties through an OLE DB or through
WebDAV by appending the hexadecimal property tag value to the namespace prefix:
http://schemas.microsoft.com/mapi/proptag/value The hexadecimal value should follow the character "x" in the name. For example, the PR_SUBJECT Messaging Application Programming Interface (MAPI) property can be accessed using the name http://schemas.microsoft.com/mapi/proptag/x0037001E. The full property tag value must be used. |
| id | This namespace is used to access id-named
Messaging Application Programming Interface (MAPI) properties in the Exchange store. You can access these properties through an OLE DB or through
WebDAV by appending the namespace globally unique identifier (GUID) in string format for the property set followed by the hexadecimal identifier for the property:
http://schemas.microsoft.com/mapi/id/{propset GUID}/value For example, http://schemas.microsoft.com/mapi/id/{3f0a69e0-7f56-11d2-b536-00aa00bbb6e6}/xfeedface |
| string | This namespace is used to access string-named
Messaging Application Programming Interface (MAPI) properties in the Exchange store. You can access these properties through an OLE DB or through
WebDAV by appending the namespace GUID in string format for the property set followed by the name (string) of the property:
http://schemas.microsoft.com/mapi/string/{propset GUID}/name For example, http://schemas.microsoft.com/mapi/string/{3f0a69e0-7f56-11d2-b536-00aa00bbb6e6}/myproperty |
Visual Basic
Dim Rec as New ADODB.Record
Dim Flds as ADODB.Fields
Dim oConn as ADODB.Connection
' assume we have the URL to an item in
' a public folder. Assume further that string-named
' properties exist for it and are set using some MAPI form
' The namespace for the property set will be
' {3f0a69e0-7f56-11d2-b536-00aa00bbb6e6}
' and the properties are called
' prop1,prop2, and prop3. Each property is a string
Dim strProp1 as String
Dim strProp2 as String
Dim strProp3 as String
oConn.Provider = "ExOLEDb.DataSource"
oConn.open "http://server/public/public folders/somefolder/"
Rec.Open "http://server/public/public folders/somefolder/item3.eml", oConn, adModeReadWrite
Set Flds = Rec.Fields
strProp1 = Flds("http://schemas.microsoft.com/mapi/id/{3f0a69e0-7f56-11d2-b536-00aa00bbb6e6}/prop1").Value
strProp2 = Flds("http://schemas.microsoft.com/mapi/id/{3f0a69e0-7f56-11d2-b536-00aa00bbb6e6}/prop2").Value
strProp3 = Flds("http://schemas.microsoft.com/mapi/id/{3f0a69e0-7f56-11d2-b536-00aa00bbb6e6}/prop3").Value
VBScript
Dim Rec
Dim Conn
Dim Flds
Set Rec = CreateObject("ADODB.Record")
set Conn = CreateObject("ADODB.Connection")
Conn.Provider = "ExOLEDb.DataSource"
Conn.open "http://server/public/public folders/somefolder/"
' assume we have the URL to an item in
' a public folder. Assume further that string-named
' properties exist for it and are set using some MAPI form
' The namespace for the property set will be
' {3f0a69e0-7f56-11d2-b536-00aa00bbb6e6}
' and the properties are called
' prop1,prop2, and prop3. Each property is a string
Dim strProp1
Dim strProp2
Dim strProp3
Rec.Open "http://server/public/public folders/somefolder/item3.eml", Conn , adModeReadWrite
Set Flds = Rec.Fields
strProp1 = Flds("http://schemas.microsoft.com/mapi/id/{3f0a69e0-7f56-11d2-b536-00aa00bbb6e6}/prop1").Value
strProp2 = Flds("http://schemas.microsoft.com/mapi/id/{3f0a69e0-7f56-11d2-b536-00aa00bbb6e6}/prop2").Value
strProp3 = Flds("http://schemas.microsoft.com/mapi/id/{3f0a69e0-7f56-11d2-b536-00aa00bbb6e6}/prop3").Value
