Public Function BeginExecute( _
   ByVal Request As AISRequest, _
   ByVal callback As AsyncCallback, _
   ByVal asyncState As Object _
) As IAsyncResult

Dim instance As ImageServerProxy
Dim Request As AISRequest
Dim callback As AsyncCallback
Dim asyncState As Object
Dim value As IAsyncResult
 
value = instance.BeginExecute(Request, callback, asyncState)

public IAsyncResult BeginExecute( 
   AISRequest Request,
   AsyncCallback callback,
   object asyncState
)