R2K001 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:
R2L001 manifest for SAS High-Performance Risk Server Component 4.5
R4N001 manifest for SAS Risk Work Group Mid-Tier 4.5
R4P001 manifest for SAS Code Debugger 4.5
R4Q001 manifest for SAS Risk Scenario Manager 4.5
R4R001 manifest for SAS High-Performance Risk Mid-Tier 4.5
R5E001 manifest for SAS Risk Work Group Server Configuration 4.5