xcdSfxMessages
{
  xsmSuccess = 0,
  xsmFail = 1,
  xsmErrorCreatingFolder = 2,
  xsmIntro = 3,
  xsmLicense = 4,
  xsmDestinationFolder = 5,
  xsmPassword = 6,
  xsmInsertLastDisk = 7,
  xsmInsertDisk = 8,
  xsmAbortUnzip = 9,
  xsmCreateFolder = 10,
  xsmOverwrite = 11,
  xsmProgress = 12
}

This enumeration is used by the SfxMessages property. Explanations on each parameter can be found in the that property's help topic.