Connect the second NIC directly to the legacy machine.
Right-click your primary Network Adapter (Ethernet or Wi-Fi) and select . Click the Install... button below the item list. netbeui+for+windows+7+11+exclusive
If you don't have an XP CD, search online for netnbf.inf and nbf.sys for Windows 7. Copy files: Copy netnbf.inf to C:\Windows\inf . Copy nbf.sys to C:\Windows\System32\drivers . Install Protocol: Connect the second NIC directly to the legacy machine
Right-click your network adapter, choose Properties , then click Install . Select Protocol: Select Protocol and click Add . Have Disk: Click Have Disk and browse to C:\Windows\INF\ . Bind Protocol: Select NetBEUI from the list and install it. netbeui+for+windows+7+11+exclusive