Public Function BeginQueryAttachmentData( _
   ByVal MapName As String, _
   ByVal TableID As Integer, _
   ByVal AttachmentIDs() As Integer, _
   ByVal TransportType As esriTransportType, _
   ByVal callback As AsyncCallback, _
   ByVal asyncState As Object _
) As IAsyncResult

Dim instance As MapServerProxy
Dim MapName As String
Dim TableID As Integer
Dim AttachmentIDs() As Integer
Dim TransportType As esriTransportType
Dim callback As AsyncCallback
Dim asyncState As Object
Dim value As IAsyncResult
 
value = instance.BeginQueryAttachmentData(MapName, TableID, AttachmentIDs, TransportType, callback, asyncState)

public IAsyncResult BeginQueryAttachmentData( 
   string MapName,
   int TableID,
   int[] AttachmentIDs,
   esriTransportType TransportType,
   AsyncCallback callback,
   object asyncState
)