OCSetup is available as part of the Windows Vista and Windows Server 2008 operating system. This tool
replaces Sysocmgr.exe, which is included in the Windows XP and Windows Server 2003 operating
systems.
This new tool can be used to perform which one of the following operations?

A.
All of these

B.
Microsoft System Installer (MSI) files that are passed to the Windows Installer service (MSIExec.exe)

C.
Component-Based Servicing (CBS) components that are passed to Package Manager

D.
CBS or MSI packages that have an associated custom installer .exe file

Explanation:
http://technet.microsoft.com/en-us/library/dd799247%28v=ws.10%29.aspx
OCSetup Command-Line Options
The Windows?Optional Component Setup (OCSetup.exe) tool is a command-line tool that can be used
to add system components to an online Windows image. It installs or removes Component-Based
Servicing (CBS) packages online by passing packages to the Deployment Image Servicing and
Management (DISM) tool for installation or removal. OCSetup can also be used to install Microsoft
System Installer (MSI) packages by calling the Windows Installer service (MSIExec.exe) and passing
Windows Installer components to it for installation or removal. The MSI file must be signed by Microsoft
to be able to be installed by using OCSetup.In addition, OCSetup can be used to install CBS or MSI system component packages that have associated
custom installers (.exe files). The OCSetup tool is available as part of the Windows?7 and Windows
Server?2008 R2 operating systems. You can use OCSetup.exe on a computer running Windows 7 or
Windows Server 2008 R2.