Public Function BeginComputeDistance( _
   ByVal MapName As String, _
   ByVal FromPoint As ESRI.ArcGIS.ADF.ArcGISServer.Point, _
   ByVal ToPoint As ESRI.ArcGIS.ADF.ArcGISServer.Point, _
   ByVal Units As ESRI.ArcGIS.ADF.ArcGISServer.esriUnits, _
   ByVal callback As AsyncCallback, _
   ByVal asyncState As Object _
) As IAsyncResult

Dim instance As MapServerDcomProxy
Dim MapName As String
Dim FromPoint As ESRI.ArcGIS.ADF.ArcGISServer.Point
Dim ToPoint As ESRI.ArcGIS.ADF.ArcGISServer.Point
Dim Units As ESRI.ArcGIS.ADF.ArcGISServer.esriUnits
Dim callback As AsyncCallback
Dim asyncState As Object
Dim value As IAsyncResult
 
value = instance.BeginComputeDistance(MapName, FromPoint, ToPoint, Units, callback, asyncState)

public IAsyncResult BeginComputeDistance( 
   string MapName,
   ESRI.ArcGIS.ADF.ArcGISServer.Point FromPoint,
   ESRI.ArcGIS.ADF.ArcGISServer.Point ToPoint,
   ESRI.ArcGIS.ADF.ArcGISServer.esriUnits Units,
   AsyncCallback callback,
   object asyncState
)