The SAS Deployment Wizard documentation has instructions for creating a silent install. If you can't find the doco, contact Tech Support. You need to launch the Wizard in RECORD mode from the DOS prompt and specify a response file. Then you can run setup.exe with options. This also works with applying a hotfix.
The problem we had is that the MS Runtime Components could not always install itself. This crashed the silent install, sometimes causing blue screen of death for the customer.
For different Windows O/S you might have to create two response files, one created on each platform. The Wizard should select the correct install files for each O/S, as it would doing it manually.