Service unavailable on First call in synchronous mode only! question for webservice.htc gurus.

> Hi,
> This is a interesting problem.
>
> I got webservice.htc integrated pretty well with .net framework. I
> wrote a control that generates all the necessary scripts to consume
> webservices with dhtml objects.
>
> It is working great for me accept for one scenario.
>
> When the page loads, and the first webservice call is synchronous, it
> returns "service unavailable" error, BEFORE actually making the server
> call!
>
> After stepping through the webservice.htc file a few [dozen] times i
> noticed that:
> callService method checks for readyState == 4 (completed) status of
> the xml object. if call is synchronous and status isnt 4 it throws the
> "service unavailable" error.
>
> the status is actually 3 (loaded) during the call.
>
> after callservice is executed and I get the nice error alert,
> onreadystatechange event is exected again and the xml doc is now in
> completed state.
>
> therefore every call after this is successful!
>
>
> I am running out of ideas on how to troubleshoot this further (other
> than working around by making a dummy call to the ws on page load) but
> i would hate to work around such important issue.
>
>
> here is my abridged viewsource (all my js is autogenerated by asp.net
> control):
>
> <div id="WebService_233632359"
> style="behavior:url(/scripts/webservice.htc)">
>
> function Confirmation_servicecontrol_SubmitTrade_synchronou s (
> Quantity, Price, Symbol, tradeId, Action ) {
>
> // create call object and set its properties
>
> var callobject = new Object();
> callobject.funcName = 'SubmitTrade';
> callobject.async = false;
>
>
> // register service if this is the first time running it
> // tagid.classname ( classname = name of server side class which
> methods will be using )
> if ( ! WebService_233632359.Confirmation ) {
>
> // check if this service has a registration function
> if ( typeof(register_Confirmation_servicecontrol) == 'function' )
> {
> register_Confirmation_servicecontrol();
> } else {
>
> // are we in debug mode ?
> if (register_Confirmation_servicecontrol) {
> alert( 'registration function not found
> register_Confirmation_servicecontrol' );
> }
> return;
> }
> }
>
> // verify that the service was registered and call it
> if ( WebService_233632359.Confirmation ) {
>
>
> // webservice call
>
> return WebService_233632359.Confirmation.callService( callobject ,
> Quantity, Price, Symbol, tradeId, Action );
>
>
> } else {
> if (true) { alert( ' service failed to register ::
> WebService_233632359:Confirmation ' ); }
> }
>
> }
>
> function register_Confirmation_servicecontrol() {
> WebService_233632359.useService('http://localhost/pbt/Confirmation.asmx?wsdl','Confirmation');
> }
>