contains REGFIND, a command-line utility with which you can search the Windows NT Registry for arbitrary data, key names, or value names and optionally replace any of these with new values.
<b><i>
usage: REGFIND \[-h hivefile hiveroot | -w Win95 Directory | -m \\machinename\]
               \[-i n\] \[-o outputWidth\]
               \[-p RegistryKeyPath\] \[-z | -t DataType\] \[-b | -B\] \[-y\] \[-n\]
                   \[searchString \[-r ReplacementString\]\]

where: -h specifies a specify local hive to manipulate.
       -w specifies the paths to a Windows 95 system.dat and user.dat files
       -m specifies a remote Windows NT machine whose registry is to be manipulated.
       -i n specifies the display indentation multiple.  Default is 4
       -o outputWidth specifies how wide the output is to be.  By default the
          outputWidth is set to the width of the console window if standard
          output has not been redirected to a file.  In the latter case, an
          outputWidth of 240 is used.

       -p registryPath specifies where to start searching
           Valid prefix names for easy access to well known parts of the registry are:

              HKEY_LOCAL_MACHINE -> \Registry\Machine
              HKEY_USERS -> \Registry\Users
              HKEY_CURRENT_USER -> \Registry\Users\...
              USER:   -> HKEY_CURRENT_USER

       -t specifies which registry types to look at:
              REG_SZ, REG_MULTI_SZ, REG_EXPAND_SZ
              REG_DWORD, REG_BINARY, REG_NONE
          Default is any of the _SZ types

       -b only valid with _SZ searches, and specifies that REGFIND should
          look for occurrences of the searchString inside of REG_BINARY data.
          May not be specified with a replacementString that is not the same length
          as the searchString

       -B same as -b but also looks for ANSI version of string within REG_BINARY values.

       -y only valid with _SZ searches, and specifies that REGFIND should
          ignore case when searching.

       -n specifies to include key and value names in the search.
          May not specify -n with -t

       -z specifies to search for REG_SZ and REG_EXPAND_SZ values that
          are missing a trailing null character and/or have a length that is
          not a multiple of the size of a Unicode character.  If -r is also
          specified then any replacement string is ignored, and REGFIND will
          add the missing null character and/or adjust the length up to an
          even multiple of the size of a Unicode character.

       searchString is the value to search for.  Use quotes if it contains
          any spaces.  If searchString is not specified, just searches based on type.

       -r replacementString is an optional replacement string to replace any
          matches with.

       searchString and replacementString must be of the same type as specified
       to the -t switch.  For any of the _SZ types, it is just a string
       For REG_DWORD, it is a single number (i.e. 0x1000 or 4096)
       For REG_BINARY, it is a number specifing #bytes, optionally followed by
       the actual bytes, with a separate number for each DWORD
           (e.g. 0x06 0x12345678 0x1234)
       If just the byte count is specified, then REGFIND will search for all
       REG_BINARY values that have that length.  May not search for length
       and specify -r

       When doing replacements, REGFIND displays the value AFTER the replacement
       has been.  It is usually best to run REGFIND once without the -r switch
       to see what will be change before it is changed.</i></b>
To search for NOTEPAD in the SOFTWARE key of a users unloaded registry hive, use the following syntax:

REGFIND -h "c:\winnt\Profiles\UserName\ntuser.dat" KEYR -p KEYR\Software NOTEPAD

The above will list all SOFTWARE sub-keys that contain the NOTEPAD string. The KEYR argument specifies the registry key name for the root key of this hive.