We have a set of stored procedures intended for a locally hosted web interface to our product. We have a customer who has third party web development/hosting, who wants to integrate this third party with our DB. Is this as simple as opening up certain ports on the customer's firewall, and having the third party web people call the existing stored procedures a certain way (through RPC)? If so, can anyone provide details/resources? If not, are web services or something similar absolutely required? Thanks.