http://blogs.msdn.com/volkerw/archive/2008/06/18/windows-hpc-server-2008-now-in-the-top-25-of-the-top500-list.aspxWe are very excited to share with you the news of a major achievement for the Microsoft HPC program.&#160; Running Windows HPC Server 2008 the HPC Performance Team recently completed a Top500 run on the fastest HPC cluster at National Center for Supercomputingen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/volkerw/archive/2008/06/18/windows-hpc-server-2008-now-in-the-top-25-of-the-top500-list.aspx#8619820Thu, 19 Jun 2008 05:13:18 GMT91d46819-8472-40ad-a661-2c78acb4018c:8619820Christan Saborio<p>The article mentions that the &quot;beta&quot; version was used. &nbsp;Do you know if this refers to Beta2? &nbsp;Great news! :)</p> http://blogs.msdn.com/volkerw/archive/2008/06/18/windows-hpc-server-2008-now-in-the-top-25-of-the-top500-list.aspx#8625379Fri, 20 Jun 2008 17:07:07 GMT91d46819-8472-40ad-a661-2c78acb4018c:8625379Bob<p>This is a great achievement, but one must be careful when comparing it to the previous top500 entry. Much has changed since then besides the operating system.</p>