http://blogs.msdn.com/w32time/archive/2008/06/10/high-accuracy-time-and-why-we-don-t-support-it.aspxMore than any other, the most often asked question of the Windows Time Service is "How do I configure w32time for high accuracy?" Bob Drake has taken the time to answer this question over at the Ask the Directory Services Team blog. You can read his posten-USCommunityServer 2.1 SP1 (Build: 61025.2)