Lenovo T450s WinPE 3.1 Driver Issues

I am looking for a driver that works in WinPE. We are using Management Suite Version 9.50.2.6 without SP. For that version LD wrote:

LANDESK Management Suite 9.0 SP3 - LANDESK Management Suite 9.5 without Service Pack

• The WinPE version is updated to 3.1.
• WinPE 3.1 requires Windows 7 drivers (NDIS 6.2).

So we searched for NDIS 6.2 drivers (Win7x86). Network adapter in the Lenovo T450s is "Intel Ethernet Connection I218-LM"

But all didn't work! Any help in which *.inf files are needed would be great!?