truecrypt:
  7.1a:
    installer: 'https://download.truecrypt.ch/current/TrueCrypt%20Setup%207.1a.exe'
    full_name: 'TrueCrypt 7.1a'
    reboot: False
    install_flags: '/S'
    uninstaller: '%ProgramFiles(x86)%\Truecrypt\uninstall.exe'
    uninstall_flags: '/S'