NIC Teaming can be enabled under Windows (including, non-server versions of Windows, such as Windows 7) for adapters such as the NetXtreme, via the "Broadcom Advanced Control Suite" (BACS). There are multiple places from where the software can be downloaded, for instance, the IBM website provides a Broadcom CD (mirrored for preservation) that includes, amongst others, BACS.
The video demonstrates teaming four interfaces using 802.3ad link aggregation - supposedly, the switch must have 802.3ad link aggregation switched on for the ports that the computer connects to.