ISA Server SE Appendix B: Setup Switches
When you run Setup from a command prompt, you can modify which components are installed, provide required setup information, or repair an installation.To run ISA Server Setup
To modify which components are installed during installation, at a command prompt, type: PathToISASetup\Setup.exe ADDLOCAL=FeatureToInstall.
To repair an installation using a command-line parameter, at a command prompt, type: PathToISASetup\Setup.exe REINSTALL=ALL.
For a full list of parameters and values, see the table in ISA Server SE Appendix C: Unattended Setup.