SlackBuildsOrg/system/hivex

libhivex is a self-contained library for
reading and writing Windows Registry "hive" binary files.

Unlike many other tools in this area,
it doesn't use the textual .REG format for output, because parsing
that is as much trouble as parsing the original binary format. Instead
it makes the file available through a C API, or there is a
separate program to export the hive as XML.