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I am attempting to install the Network Policy Server role via the Add Roles and Features wizard, which is being run remotely from a management station (i.e. not on the server itself).

It tells me I need to specify an Alternate Source Path for the installation files. I have tried:


None of these are working - the wizard just bombs out telling me it can't find the source files required.

What am I missing here?

This is a Server Core installation, and I have tried it via PS as well:

enter image description here

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up vote 3 down vote accepted

What you're missing, as far as I can tell, is that NPS is not a supported role on Server 2012 Core. (Even though RRAS is.)

When Windows Server 2012 is in Server Core mode, the following server roles are supported:

Active Directory Certificate Services

Active Directory Domain Services

DHCP Server

DNS Server

File Services (including File Server Resource Manager)

Active Directory Lightweight Directory Services (AD LDS)


Print and Document Services

Streaming Media Services

Web Server (including a subset of ASP.NET)

Windows Server Update Server

Active Directory Rights Management Server

Routing and Remote Access Server, including the following sub-roles:

    Remote Desktop Services Connection Broker


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That's a really great error message it gives you when you try to install an unsupported feature. Really informative about what the actual problem is. Way to go Microsoft! – Mark Henderson Feb 6 '14 at 10:42
@MarkHenderson I know, right? If they're going to make it useless, they could have at least tried to make it amusing, like ps0: server role on fire! – HopelessN00b Feb 6 '14 at 10:46

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