https://support.microsoft.com/en-gb/topic/software-update-1-rollup-1-for-forefront-threat-management-gateway-tmg-2010-service-pack-1-c2ada793-932c-0699-9f29-43c13c25456c
Describes the issues that are resolved by Update 1 Rollup 1 for Forefront Threat Management Gateway (TMG) 2010 Service Pack 1 (SP1).
threat management gatewaysoftware updaterollupforefront