from your previous reply "integrating BTS into our product line"
Are you trying to create a mechanism for users of your product to integrate using Biztalk.
One issue is the messaging transport. Receive adapters come in two types – polling and callable.
The SQL Server is a polling adapter while the SOAP adapter is called from an external entity
It sounds like you wish your product to be the initiator of messages.
So you need a mechanism that will import metadata and generate a callable endpoint.
One possibility is an application specific adapter. Much like the Oracle/JDEdwards/etc adapters.
These adapters allow you to import metadata from the application that defines the messages (creates the Xml schema) and also have a runtime component that handles your own custom messaging transport.
Another possibility is a custom wizard like the Web Services publishing wizard that could import the metadata from your product, and create a callable endpoint like a web service, MSMQ or similar.