#!/usr/bin/perl

use strict;
use warnings;
use Win32::TieRegistry;

use constant KEY => 'SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall';

my $registry = $Registry->{'LMachine\\'};

for my $key ( split /\\/, KEY ){
    $registry = $registry->{ $key . '\\' };
}

for my $key ( keys %$registry ){
    next unless index( $key, '{' ) == 0;
    my $tmp = $registry->{$key};

    next unless $tmp->{DisplayName};
        
    print sprintf "Programm:\t%s\nVersion:\t%s\nDatum:\t%s\nHersteller:\t%s\n", @{ $tmp }{ qw/DisplayName DisplayVersion InstallDate Publisher/ };
}