I'm surprised, in the ``whereis'' discussion, nobody mentioned a very
recent flavor of whereis called locate, that has been under active
development for a few years: long file name support, goto to file
found, execute macros or command(s) on found file, search through
multiple drives, runs on most all versions of dos, etc. Get it here:
http://www.highfiber.com/~raster/locate.zip
The only file finder, freeware program I know with more options,
is an older program:
ftp://ftp.simtel.net/pub/simtelnet/msdos/dirutl/snif134.zip
Snif lets you define, dynamically different options for one of several
files to find, on a single command line.