If you encounter problems with a third-party API or with an open standard, contact the API vendor for support, or see the documentation for the open standards. If interoperability problems occur, you should inform the API vendor that in order to successfully interoperate with Microsoft products, the API vendor’s products must follow the applicable interoperability specifications. If you believe that a Microsoft product is not following an open specification correctly, Microsoft Customer Service and Support provides support for those scenarios.
For Microsoft documentation for the algorithms that are used to convert iCalendar and vCard to MAPI objects, visit the following websites:
For information about support for Microsoft Open Protocol specifications, visit the following websites:
Article ID: 2269506 - Last Review: Oct 25, 2011 - Revision: 1