MSDelta is the next generation of the PatchAPI compression
technology that was included in earlier version of the Windows operating
system. MSDelta typically produces smaller deltas than PatchAPI.
In order to obtain the Microsoft Compression Client Pack 1.0 for Windows XP and Windows Server 2003,
contact Microsoft Product Support services. For a complete list of Microsoft
Product Support Services telephone numbers and information about support costs,
visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for
support calls may be canceled if a Microsoft Support Professional determines
that a specific update will resolve your problem. The usual support costs will
apply to additional support questions and issues that do not qualify for the
specific update in question.