Hi Steve,
Go to Search/All Files and Folders/More Advanced Options/Change Indexing
Service/Index unknown file types.
If this doesn't help...
Windows® XP has a known issue for not finding a number of File Types when
you do a Search for Files "containing text" or using the "A word or phrase
in the file" option. This can be remedied for many file types, but not all.
Download the VBS file below. Double click the file you just saved. You'll
be prompted to enter a file extension. If the PersistentHandler value is
correct, no changes will be made. If the PersistentHandler value exists,
but is different, no changes will be made. If no PersistentHandler value
exists, then it will be created.
Enable XP's Search to find text in files:
http://www.dougknox.com/xp/scripts/xp_persisthandler.vbs
Manual Edit:
To resolve this problem for other file types, install a program that
registers a filter for the file type that you want to search. If no program
that provides a filter is available, you can use the plain text filter for a
file type.
Go to Start/Run/Regedit and add a PersistentHandler key under the file type
key in HKEY_CLASSES_ROOT and set its (Default) string value name to the
following value: {5e941d80-bf96-11cd-b579-08002b30bfeb}
For example, to use the text filter provider for .pas files, the following
registry setting should exist:
HKEY_CLASSES_ROOT\.zzz\PersistentHandler\(Default) =
{5e941d80-bf96-11cd-b579-08002b30bfeb}
After you add this value to the registry, you must log off and then log back
on to make the change take effect.
Using the "A Word or Phrase in the File" Search Criterion May Not Work
http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q309173
Registry Edits, Tips and Tricks for XP
http://www.kellys-korner-xp.com/xp_tweaks.htm