U19003 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:
U16003 manifest for SAS Regulatory Risk Management Server 5.2
U17003 manifest for SAS Regulatory Risk Management Server Configuration 5.2
U18003 manifest for SAS Regulatory Risk Management Studio Mid-Tier 5.2