silent install of IPX/SPX protocol?

I want my unattended XP CD to silently install the IPX protocol alongside TCP/IP for some older games like starcraft. Using a microsoft winnt.sif creator I can actually get what I need to input to install ipx by default but it does not do it silently. What was generated is below:

[Networking]

InstallDefaultComponents=No

[NetAdapters]

Adapter1=params.Adapter1

[params.Adapter1]

INFID=*

[NetClients]

MS_MSClient=params.MS_MSClient

[NetServices]

MS_SERVER=params.MS_SERVER

[NetProtocols]

MS_TCPIP=params.MS_TCPIP

MS_NWIPX=params.MS_NWIPX

[params.MS_TCPIP]

DNS=Yes

UseDomainNameDevolution=No

EnableLMHosts=Yes

AdapterSections=params.MS_TCPIP.Adapter1

[params.MS_TCPIP.Adapter1]

SpecificTo=Adapter1

DHCP=Yes

WINS=No

NetBIOSOptions=0

[params.MS_NWIPX]

VirtualNetworkNumber=00000000

AdapterSections=params.MS_NWIPX.Adapter1

[params.MS_NWIPX.Adapter1]

SpecificTo=Adapter1

PktType=0xFF

NetworkNumber=00000000

When I put this into my winnt.sif inplace of:

[Networking]

InstallDefaultComponents=Yes

it does infact select IPX by defualt but I have to actually hit custom then ok. Any ideas or help would be appreciated.