What is the command used to configure IIS via Symantec Installation Manager (SIM) if those components are not present?
ITMS 8.x
The Microsoft tool "servermanagercmd.exe" (run as Administrator from the command prompt) can be used to install manually the IIS components needed for the Installation Readiness Check in SIM:
servermanagercmd.exe -install web-server web-asp as-web-support web-mgmt-compat net-http-activation net-non-http-activ
To setup the server for installation use servermanagercmd.exe with the following options:
Web-Server
Web-Asp
AS-Web-Support
Web-Mgmt-Compat
NET-HTTP-Activation
NET-Non-HTTP-Activ
This Microsoft article is a good reference servermanagercmd