I have a ASP.Net web application with a couple of WebServices running on http://localhost/MyWebServiceWS/default.aspx
I sometimes(?) but not always get this error when I 'Start' my Windows Application that has a reference to that service.

An unhandled exception of type 'System.ArgumentException' occurred 
in system.web.services.dll

Additional information: Only one WebServiceBinding attribute may be 
specified on type 'MyWebService.DataWS.DataService'.

I have to restart .NET IDE to correct the error.
I have tried IISrestart with no luck.

thanks in advance!