Yes, -B6XFP from LaCie is the only OEM:SLP key for Windows Home Server 2011 discovered by the community so far. Since WHS 2011 is based on Windows NT 6.1, you can activate it with any SLIC 2.1 (or higher), a matching certificate, and an appopriate OEM:SLP key (which we already have: the Lacie one). For VMware, take a look at this wonderful project by @pantagruel.