Download the Specification and Sample Code

Xi Specification

The Xi specification has been implemented and interoperability tested with products from multiple vendors.
The specification is considered to be in final state and will not be changed in the next three years except for bug fixes.
This commitment to stability gives Xi product implementers the assurance that the products will be up-to-date for a sufficient time span. 

The Xi specification can be downloaded as a CHM help file.

Xi Server Base Code

The Xi Server Base code is provided under the Xi Public License. Please read the license before downloading.

The base code includes a Visual Studio 2008 solution with projects for the WCF contracts, constants definitions and server base code.
The server base code implements the contracts with basic handling and the call of a virtual method that is to be overloaded by the server implementation. You should consider a vendor Xi server toolkit before implementing a Xi server on the base code.
The requirements are:
- .Net 3.5 WCF
- PNRP for server discovery( PNRP is part of Vista and XP SP3 but needs to be downloaded for XP SP2 systems)
- IP6 enabled for PNRP to work
- IIS6 or IIS 7 for IIS hosted Xi servers

Download the Xi Base Code