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) packagesonline 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 forinstallation or removal.
The MSI file must be signed by Microsoft to be ableto 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.