Simple object access protocol
US6782542B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Jan 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/547
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An application layer protocol is provided on top of HTTP 1.0/1.1 to allow for COM Automation objects to be invoked over the Internet through IIS/ISAPI servers. The format essentially encodes the automation object's name, method to invoke, and any [in], [out], [in, out] parameters that the method signature requires, packages them up into a custom MIME type and marshals it to the ISAPI dynamic link library (DLL) on the IIS/HTTP server. There, the ISAPI DLL contains the logic to unpack the SOAP request, parses it, creates the Automation object, invokes the method with the marshaled parameters, and then returns any [out] parameters to the caller/client using the SOAP protocol. It is a stateless protocol, meaning that object lifetimes only extend to one method, and are recreated between multiple calls to the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.