http://blogs.technet.com/b/jhoward/archive/2009/05/06/using-hyper-v-manager-v1-against-windows-server-2008-r2.aspxI had a couple of emails overnight asking whether it is possible to use Hyper-V Manager "v1" (as in KB952627 for Windows Vista SP1, or part of RSAT in Windows Server 2008) pointing to a machine running Windows Server 2008 R2 RC or Microsoft Hyper-V Serveren-GBTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/jhoward/archive/2009/05/06/using-hyper-v-manager-v1-against-windows-server-2008-r2.aspx#3463252Fri, 04 Nov 2011 05:43:48 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3463252Iesha <p>Hey John I &nbsp;am going to need you over the next few days just til I get the hang of being site admin of such complexity.</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3463252" width="1" height="1">http://blogs.technet.com/b/jhoward/archive/2009/05/06/using-hyper-v-manager-v1-against-windows-server-2008-r2.aspx#3312349Fri, 12 Feb 2010 03:47:00 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3312349DerekWilliams<p>The problem I am experiencing seems to fit your article. Any solutions? </p> <p>My Event logs show:</p> <p>eventID 23012:</p> <p>Device 'VMBus' in [server name] cannot load because it is incompatible with virtualization stack. &nbsp;Server version 13 Client version 65537 (Virtual machine 716D7C42-8F53-4C0D-839B-C88A4ED94C6F).</p> <p>eventID=2:</p> <p>The parent partition uses a different VMBus version. You need to Install a matching VMBus version in this guest installation.</p> <p>Host machine runs Small Business Server 2008 - SP2 with vmbus driver version: 6.0.6002.18005</p> <p>Client machine runs Windows Server 2008 R2 with vmbus driver version: 6.1.7600.16385</p><div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3312349" width="1" height="1">