H63003 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:
H82003 manifest for SAS Merchandise Intelligence Client 5.21
H84003 manifest for SAS Merchandise Intelligence Mid-Tier 5.21
H79001 manifest for SAS Merchandise Intelligence Server 5.21
H80003 manifest for SAS Merchandise Intelligence Workbench Server 5.21
H81003 manifest for SAS Merchandise Solutions Configuration Workbench 5.21
H64004 manifest for SAS Revenue Optimization Server 5.2