ION Enterprise software requires this hotfix to interpret the new dynamic structure of the Windows Registry. This hotfix is will allow accurate timestamp reporting for data prior to the 2006 DST transitions. If this hotfix is not applied, the system will use the 2007 DST transition settings for all data, including 2006 and earlier. Note This hotfix is not required to report correctly on data after March 11, 2007  it is only required for correct reporting of 2006 data. Note This Daylightsavings hotfix is compatible only for ION Enterprise 5.5 with Service Pack 2