Here is a list of command line parameters that the Spybot-S&D installer supports:

• /sp-
  Will skip the first page of the installation wizard (Do you wish to continue? ...)
• /silent
  Will display the progress during installation, but not the wizard.
• /verysilent
  Even the progress will not be shown. Errors etc. would still be shown.
• /surpressmsgboxes
  Will use standard actions for message boxes (no overwriting of files, cancelling where the alternative would be retrying...)
• /log (or /log="filename")
  Creates a log file in the temp folder that contains detailed information about actions taking place during the installation.
• /nocancel
  Disables the Cancel and Close button. Useful with /silent.
• /norestart
  Suppress reboots even if they were necessary at the end of the installation.
• /restartexitcode=N
  If a restart is needed, the setup would return the specified exit code.
• /loadinf="filename" (and /saveinf="filename")
  Can be used to use a saved setup configuration (or save one).
• /lang=language
  Overrides the language dialog with a predefined language. Use ISO 2 letter language describers here.
• /dir="x:\dirname"
  Installs into that directory instead of the default one.
• /group="folder name"
  Installs into a program group of that name instead of the default one.
• /noicons
  Avoids creation of any icons for the installed software.
• /type=typename
  Starts installation with a give type. Supported types are
  • full,
  • blind and
  • compact.
• /components="comma separated list of component names"
  Installs the given components instead of the default ones. Supported components are
  • main,
  • blind (icons for blind users),
  • language (all language files),
  • skins,
  • updatedl (for downloading updates as part of the installation),
  • updatew95 (to download prerequisites on Windows 95),
  • SDWinSec (to install the Security Center integration on Vista),
  • SDShredder (to install the stand-alone shredder), and
  • SDDelFile (to install the file removal helper).
• /tasks="comma separated list of tasks"
  Specifies a list of tasks that should be executed. Tasks currently supported are:
  • desktopicon
  • quicklaunchicon
  • launchsdhelper
  • launchteatimer
• /mergetasks="comma separated list of tasks"
  Same as /tasks, just with the exception that standard tasks are not disabled by default.