Load xsd file from assembly

First, you need to add xsd file to resource by changing build action to "Embedded Resource".
To access this file from code write something like:

XmlSchemaSet schemas = new XmlSchemaSet();
Assembly assembly = Assembly.GetExecutingAssembly();
Stream stream = assembly.GetManifestResourceStream("Namespace.ServiceDescription.xsd");
schemas.Add("", XmlReader.Create(new StreamReader(stream)));