A 
    ACID properties, 171, 173, 174, 175 
     AcknowledgementInterval element, 152 
     AcknowledgmentRange element, 83 
       activation service, 176, 178180 
     Active Server Pages (ASP), 32.  See also  ASP.NET 
     Add Web Reference tool, 35, 36, 44 
      addressing, message, 7781 
       ASP.  See  Active Server Pages (ASP); ASP.NET 
     ASP.NET 
  vs. Active Server Pages, 32 
  configuration files, 33 
  configuring WSE settings in Web.config file, 42 
  overview, 32 
     atomic transactions 
  completion protocol, 183184 
  defined in WS-AtomicTransaction, 182, 183 
  maintaining ACID properties, 175, 183 
  overview, 183 
  protocols, 183186 
  two-phase commit protocol, 184185 
     atomicity, as ACID property, 171, 175 
     attachments.  See also  WS-Attachments specification; WS-PolicyAttachment specification 
  adding to SOAP messages using WSE, 6668 
  Base64 encoding, 6062 
  extracting from DIME messages, 68 
  MIME and, 6364 
  securing, 5960, 72 
  sending with SOAP messages, 48 
  SOAP Messages with Attachments, 6364 
  WSDL support, 5659 
  WSE support, 6473 
     authentication 
  defined, 102 
  overview, 103, 192 
  public key, 104, 201 
  Web services trust model, 192201 
     authorization 
  defined, 102 
  need for specification support, 225 
  overview, 107