After applying Windows Server 2003 SP-1 patch, I cannot use the Exchange
Workflow Designer - it fails with the dreaded "Cannot create workflow
project" error. All workflow event sink identity properties and roles are
configured correctly. Event log on the server says "The Workflow Event Sink
could not run because the 'Enforce access checks' checkbox is not checked on
its COM+ application property page." But it IS!!! I even uninstalled SP-1,
but problem persists. Any clues?