From the Trenches Patching ESXi 5.5 for Heartbleed without installing Update 1 Rick Blythe April 25, 2014
Alerts ALERT: Active Directory authentication fails when vCenter Single Sign-On 5.5 runs on Windows Server 2012 along with AD Rick Blythe September 25, 2013
Alerts ALERT: vSphere 5.5 Single Sign-On upgrade rolls back after importing Lookup Service data Rick Blythe September 24, 2013