Hey folks,
I am attempting to retrieve specific keys from the registry of a remote computer based upon a list provided by one of those "snapshot" tools (Winalysis). I have 3 types of keys to report out: (a) Deleted Keys, (b) Changed Keys, and (c) New Keys. With (a), I just need to list the name of the key that was deleted. With (b), I need to list the old value and retrieve the new value (the old value is saved already). With (c), I need to list the new key, all of the values under that key, any subkeys under that key... wash, rinse, repeat.

So... I managed to get the code working for the most part, but there is a part that is eluding me. Thank you, Tie, for your input on this. Unfortunately, I'm too dumb to see what I've done wrong. What I'm missing is the Default Value of the new keys. Only non-null fields should be displayed, but as it stands now, none are.

Here is the code:

#!/usr/bin/perl
#parse diff.txt produced by Winalysis 2.5, retrieve the registry entri
+es from the server as specified by the input file
my $debug = $ARGV[0] || 0;

use Win32::TieRegistry;# (Delimiter => "/");#, TiedHash => \%Registry)
+;

my $sMachineName = 'hacomtw05';
my $sFileName    = 'hacomtw05.diff.txt';
my %Done;
my $i = 0;
my @NewKeys;
my %ChangedKeys;
my @DeletedKeys;

open(IN,$sFileName) || die("Could not open $filename for reading: $!\n
+");
my @Txt = <IN>;
close IN;

for ($i = 0; $i < $#Txt; $i++) {
    if($Txt[$i+1] =~ /New Key/) {
        chomp $Txt[$i];
        push @NewKeys,$Txt[$i];
        $i++;
    }
    elsif($Txt[$i+1] =~ /Value Changed/) {
        chomp $Txt[$i];
        chomp $Txt[$i+1];
        my @Vals = split(/\t/,$Txt[$i+1]);
        dprint ('Chg: ',$Txt[$i]," ",join("^^",@Vals),"\n");
        $ChangedKeys{$Txt[$i]} = [ $Vals[2], $Vals[3] ];
        $i++;
    }
    elsif($Txt[$i+1] =~ /Key Last Modified Date/ && $Txt[$i+2] =~ /Val
+ue Changed/) {
        chomp $Txt[$i];
        chomp $Txt[$i+2];
        my @Vals = split(/\t/,$Txt[$i+2]);
        dprint ('Mod: ',$Txt[$i]," ",join("^^",@Vals),"\n");
        $ChangedKeys{$Txt[$i]} = [ $Vals[2], $Vals[3] ];
        $i += 2;
    }
    elsif($Txt[$i+1] =~ /Deleted Value/) {
        chomp $Txt[$i];
        push @DeletedKeys, $Txt[$i];
        $i++;
    }
}

$key= new Win32::TieRegistry "LMachine\\",{ Access=>KEY_READ, Delimite
+r=>"\\" };

print getNewKeys();
print getChangedKeys();
print getDeletedKeys();

sub getNewKeys {
    my $str = '';
    $str .= "NEW KEYS:\n";
    $str .= "Index\tName\tDatatype\tValue\n";
    $i = 1;
    foreach ( @NewKeys ) {
        s/^HKLM/LMachine/;
        my $sKeyPath = $_;
        dprint ($sKeyPath . "\n");
        
        my @ValueMatrix = parseValue( $sKeyPath, 'recurse' );
        my $j;
        for ($j = 0; $j < $#ValueMatrix; $j++) {
            my $valueString = $ValueMatrix[$j][0];
            my $dataType = $ValueMatrix[$j][1];
            my $attribute = $ValueMatrix[$j][2];
            if($valueString) {
                   $sKeyPath =~ s/^LMachine/HKEY_LOCAL_MACHINE/;
                $str .= $i++ . "\t" . $sKeyPath . "\\" . $attribute . 
+"\t" . $dataType . "\t" . $valueString . "\n";
            }
        }
    }
    chomp $str;
    return $str;    
}

sub getChangedKeys {
    my $str = '';
    $str .= "\nCHANGED KEYS:\n";
    $str .= "Index\tName\tDatatype\tOld Value\tNew Value\n";
    $i = 1;
    foreach ( keys %ChangedKeys ) {
        s/^HKLM/LMachine/;
        my $sKeyPath = $_;
        dprint ($sKeyPath . "\n");
        
        my ($valueString, $dataType, $attribute) = parseValue( $sKeyPa
+th, 'flat' );
        if($valueString) {
               $sKeyPath =~ s/^LMachine/HKEY_LOCAL_MACHINE/;
               if(length($valueString) > 255) {
                   $valueString = substr($valueString, 0, 252) . '...'
+;
               }
            $str .= $i++ . "\t" . $sKeyPath . "\\" . $attribute . "\t"
+ . $dataType . "\t" . $ChangedKeys{$_}[0] . "\t" . $valueString . "\n
+";
        }
        else {
            dprint ("Skipping a key...\n");
        }
        #exit;
    }
    chomp $str;
    return $str;    
}

sub parseValue {
    my $sKeyPath = shift;
    my $mode = shift;
    my $attribute;
    
    $Done{$sKeyPath} ? return 0 : {$Done{$sKeyPath} = 1};
    
    if ($mode eq 'flat' or $mode eq 'default') {
        my @fullPath = split(/\\/,$sKeyPath);
        $attribute = pop @fullPath;
        $sKeyPath = join('\\',@fullPath);
        @fullPath = undef;
    }
    my $remKey= $key->Connect( $sMachineName, $sKeyPath, { Access=>KEY
+_READ, Delimiter=>"\\" } )
        or return (0,0,0);
    $remKey->SplitMultis(1);
    $remKey->FixSzNulls(1);
    
    if ($mode eq 'recurse') {
        my @Names = $remKey->ValueNames;
        $remKey->Flush();
        my @ReturnMatrix;
        my @SubKeys = $remKey->SubKeyNames;
        $remKey->Flush();
        #deeeep recursion... go team!
        foreach( @SubKeys ) {
            push @ReturnMatrix, parseValue( $sKeyPath . '\\' . $_, 're
+curse' );
        }
        foreach( @Names ) {
            my ($tempString, $tempType, $tempAttr) = parseValue( $sKey
+Path . '\\' . $_, 'flat' );
            push @ReturnMatrix, [ $tempString, $tempType, $tempAttr ];
        }
        return @ReturnMatrix;
    }
    elsif ($mode eq 'flat') {
        my ($valueString, $valueType) = $remKey->GetValue($attribute);

        my $dataType = "UNKNOWN";
        if ($valueType == Win32::TieRegistry::REG_SZ) { $dataType = "R
+EG_SZ"; }
        elsif ($valueType == Win32::TieRegistry::REG_EXPAND_SZ) { $dat
+aType = "REG_EXPAND_SZ"; }
        elsif ($valueType == Win32::TieRegistry::REG_MULTI_SZ) {
            $dataType = "REG_MULTI_SZ";
            my @temp = $remKey->GetValue($attribute);
            $valueString = join('|',@{$temp[0]});
        }
        elsif ($valueType == Win32::TieRegistry::REG_DWORD) { $dataTyp
+e = "REG_DWORD"; }
        elsif ($valueType == Win32::TieRegistry::REG_BINARY) {
            $dataType = "REG_BINARY";
            $valueString = "[BINARY DATA]";
        }
        else { ($valueString, $dataType, $attribute) = parseValue($sKe
+yPath . '\\' . $attribute . '\\\\', 'default');}

        $remKey->Flush();
        return ($valueString, $dataType, $attribute);
    }
    else {
        my ($valueString) = $remKey->GetValue($sKeyPath);
        my $valueType = 1;
        my $dataType = "UNKNOWN";
        if ($valueType == Win32::TieRegistry::REG_SZ) {    $dataType =
+ "REG_SZ";}
        elsif ($valueType == Win32::TieRegistry::REG_EXPAND_SZ) {$data
+Type = "REG_EXPAND_SZ";}
        elsif ($valueType == Win32::TieRegistry::REG_MULTI_SZ) {
            $dataType = "REG_MULTI_SZ";
            my @temp = $remKey->GetValue($attribute);
            $valueString = join('|',@{$temp[0]});
        }
        elsif ($valueType == Win32::TieRegistry::REG_DWORD) {$dataType
+ = "REG_DWORD";}
        elsif ($valueType == Win32::TieRegistry::REG_BINARY) {
            $dataType = "REG_BINARY";
            $valueString = "[BINARY DATA]";
        }
        $remKey->Flush();
        return ($valueString, $dataType, '(default)');
    }
}
sub doneIt {
    $Done{shift} ? return 0 : return 1;
}
sub getDeletedKeys {
    my $str = '';
    $str = "\nDELETED KEYS:\n";
    $str .= "Index\tName\n";
    $i = 1;
    foreach ( @DeletedKeys ) {
        $str .= $i++ . "\t" . $_ . "\n";
    }
    chomp $str;
    return $str;
}

sub dprint {
    print join('',@_) if $debug;
}
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Anybody know where I am going wrong with this?