IIS and LVS: Can this be done?

[Rik Herrin]

Hi,
  We currently have the following setup:

  2 IIS servers (v6) in active-passive configuration
(using Microsoft's NLB) with an SQL Server cluster
behind them.

  I was wondering if we could use LVS to provide us
with an active-active configuration to make use of
both IIS servers instead of having one passive all the
time.  Microsoft says that using it's NLB it can't be
done so I was wondering if it's doable with LVS. 
Also, if this configuration is doable, how would it
deal with things such as persistence /
session-tracking and "session failover"?  Thanks for
your help.

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