AdsML User Extension Schema Example, Version 4 (2009-05-28) Replaces Version 3 (2008-03-28) Replaces Version 2 (2007-10-10) Replaces Version 1 (2007-04-16) This folder contains an example of an AdsML User Extension Schema. It illustrates the creation and use of user-defined extensions for an AdsML Framework standard, in this example AdsMLMaterials 2.5. The method for creating user-defined extensions is generic and applies equally to all of the AdsML Framework standards for e-commerce - AdsMLBookings, AdsMLProofOfPublication, AdsMLFinancials, etc. jc /EOF