D1Y005 is a "container" hot fix that contains "member" hot fixes which will update your SAS software components.
See "What is a container hot fix?" in the SAS Hot Fix FAQ for more information on container and member hot fixes.
A manifest listing the contents of each of the following "member" hot fixes is available:
D1W005 manifest for SAS High-Performance Risk Server Component 4.1
D1X002 manifest for SAS High-Performance Risk Mid-Tier 4.1
D1Z002 manifest for SAS Risk Scenario Manager 4.1