Public Function BeginCancelJob( _
   ByVal JobID As String, _
   ByVal callback As AsyncCallback, _
   ByVal asyncState As Object _
) As IAsyncResult

Dim instance As GPServerProxy
Dim JobID As String
Dim callback As AsyncCallback
Dim asyncState As Object
Dim value As IAsyncResult
 
value = instance.BeginCancelJob(JobID, callback, asyncState)

public IAsyncResult BeginCancelJob( 
   string JobID,
   AsyncCallback callback,
   object asyncState
)