Public Overloads Sub ComputeDistanceAsync( _
   ByVal MapName As String, _
   ByVal FromPoint As Point, _
   ByVal ToPoint As Point, _
   ByVal Units As esriUnits _
) 

Dim instance As MapServerProxy
Dim MapName As String
Dim FromPoint As Point
Dim ToPoint As Point
Dim Units As esriUnits
 
instance.ComputeDistanceAsync(MapName, FromPoint, ToPoint, Units)

public void ComputeDistanceAsync( 
   string MapName,
   Point FromPoint,
   Point ToPoint,
   esriUnits Units
)