use Win32::File::Ver;
use Data::Dumper;
print Dumper(
    GetFileVersion("$ENV{WINDIR}\\System32\\rundll32.exe")
);
__END__
$VAR1 = {
          'FileVersion' => '5.0.2134.1',
          'Raw' => {
                     'FileVersion' => '0005000008560001',
                     'Flags' => '00000000',
                     'ProductVersion' => '0005000008560001',
                     'Date' => '0000000000000000',
                     'SubType' => '00000000',
                     'Type' => '00000001',
                     'FlagMask' => '0000003F',
                     'OS' => '00040004'
                   },
          'Flags' => {},
          'Lang' => {
                      'English (United States)' => {
                                                     'CompanyName' => 'Microsoft Corporation',
                                                     'ProductName' => 'Microsoft(R) Windows (R) 2000 Operating System',
                                                     'FileVersion' => '5.00.2134.1',
                                                     'ProductVersion' => '5.00.2134.1',
                                                     'FileDescription' => 'Run a DLL as an App',
                                                     'Copyright' => 'Copyright (C) Microsoft Corp. 1981-1999',
                                                     'InternalName' => 'rundll',
                                                     'OriginalFilename' => 'RUNDLL.EXE'
                                                   }
                    },
          'ProductVersion' => '5.0.2134.1',
          'Date' => '0000000000000000',
          'Type' => 'Application',
          'OS' => 'NT/Win32'
        };