Understanding the Windows XP KB968730 Hotfix for x86 PTB Systems
: KB968730 completely replaces the earlier KB938397 update. It is the more comprehensive solution for systems needing to enroll in or process SHA-2 certificate chains. Client-Side Connectivity windows xp kb 968730 x86 ptb hotfix
The hotfix incremented the build number of these files to a post-SP3 version (e.g., from 5.1.2600.5500 to 5.1.2600.5800). This specific update also included a registry key modification under: Understanding the Windows XP KB968730 Hotfix for x86