change the configuration key DTC_EXCLUDE_DATES because you need different formats:
German Version: 01.11.2007,03.10.2007,24.12.2007,25.12.2007,26.12.2007,31.12.2007,01.01.2008
US Version: 11/01/2007,10/03/2007,12/24/2007,12/25/2007,12/26/2007,12/31/2007,01/01/2008