Notes on the new Antigen Cluster Resource (Antigen 9 SP1 RU5 and above)

Microsoft recently released Rollup 5 for Antigen 9 SP1, which contains a particularly important fix for Exchange 2000 / 2003 clusters. The full issue behind this fix is documented in KB957015. Essentially, the ‘fix’ adds a new Antigen Cluster Resource (‘AntigenClusRes’) to each EVS group. I’d like to add some more meat to the fix…

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