I\'m doing some experiments with Microsoft Dynamics CRM. You interact with it through web services and I have added a Web Reference to my project. The web service interface
There is a pre-generated XmlSerializer assembly that comes with CRM. Check to see whether you have SdkTypeProxy.XmlSerializers.dll and SdkProxy.XmlSerializers.dll in the GAC.
If you don't then that means that when you create the CrmService, .net will generate the XmlSerializer assembly which can take some time. Hope this helps