We would like to update you with further information about this issue. This has proven to be a very challenging problem for us to reproduce, and extensive testing has taken place against a range of deployment configurations of MyID including split application, web and database tiers, web tiers in DMZ configurations and different combinations/permutations of Distributed Component Object Model (DCOM) configuration both with and without ‘DCOM hardening’ (KB500442) enabled.
Overall, we can be certain that many customers have applied these Windows server updates and not experienced any problem. Two customers had been affected but both were able to be resolved by reconfiguring DCOM settings on MyID Servers. In one case, the database server was affected but not other application server tiers.