It would have been nice if you had included the warning message ;-) Update: Oh, so there it is - quite well hidden, indeed! :-) Confirms my suspicions, too.

I'm betting it's your sub wanted inside your sub get_files. A slight change may help if this is the case:

sub get_files {
    my $directory = shift;    
    opendir (DIR, $directory) or die "couldn't open directory: $direct
+ory";
    
    my @myfiles;
    my @directories_to_search = ("$directory");
    my $wanted = sub { 
        my $name = $File::Find::name;
        if ( $name =~ /html$/i && ! ( $name =~ /\.backup\.before/i ) )
+ {
            $name =~ s|\\|/|; # substitute forward slash for back slas
+hes, icky but don't know a better way.
            #print "name: $name\n";
            push @myfiles, $name;
        } 
    } # end sub wanted

    find($wanted, @directories_to_search);
    
       return @myfiles;
}
[download]

Update 2: For those who may have missed it, all I did was move the named "wanted" sub to an anony-sub, and put a ref to it in a lexical variable named "$wanted", and used that. I didn't change any of the rest of tphyahoo's code.