A. By default, Windows Server 2008 R2 Server Core has Windows on Windows (WoW64) installed. 32-bit applications and tools will work without changes. However, there are other parts of the OS that run add-ins and code that won't natively have 32-bit support, so you'll need to add an extra WoW64 package after the role or feature is added. They are:

Role/Feature

WoW64 additional package name

.Net 2.0

NetFx2-ServerCore-WOW64

.Net 3

NetFx3-ServerCore-WOW64

Failover Clustering

FailoverCluster-Core-WOW64

Input Method Editor

ServerCore-EA-IME-WOW64

PowerShell

MicrosoftWindowsPowerShell-WOW64

Print Server

Printing-ServerCore-Role-WOW64

Subsystem for UNIX-based Applications

SUACore-WOW64