Major new addtions in NLB since W2k3 are :

1. Support for ipv6

2. Complete new architecture and re-design on nlb driver. Now the nlb driver uses NDIS 6.0 filter driver model.

3. Multidip Support: It allows users to configure more then one dips

4. Few UI improvements in nlbmgr. (Support for configuring nlb through ncpa.cpl properies has been removed.)

4. Better security. All functionalities w.r.t remote control have been removed.

I will get into each of the above in more detail in my next posts... ( above list isn't comprehensive...)