Question

Is there any way to call the MS CRM web service from JavaScript from a web page that is NOT a CRM web page (i.e., not in the load or save event in a CRM form, but from a stand alone web page)? A second question: is there any way to call the MS CRM Web Service from VBScript?

Ideally I’d like to do this in CRM 2011, but would be happy to have an example from CRM 4.0.

I’m thinking I’m going to have to write a wrapper web service to do this but I would rather not go that route unless necessary.

Answer 1

From my reading and experimentation, it is not possible to call the oData endpoint from an external application that is not hosted within Dynamics CRM.

Using the OData endpoint in Visual Studio The OData service in
Dynamics CRM does not permit authentication from external
applications. (An exception to this is if the external application
uses the Azure AppFabric Service Bus to pass messages between it and
Dynamics CRM’s OData service.) However, a Web resource such as a
Silverlight XAP file or a JavaScript file that is hosted in a Dynamics
CRM solution can use the OData service as a data source.

See http://my.safaribooksonline.com/book/-/9780470568149/chapter-22-working-with-server-side-customizations/585

My understanding is that WCF is the way to go for external applications.