Hi Julie,
The only input I can provide is that I have a customer who used Microsoft NLB to laodbalance a lot of Windows Terminal Servers and often had problems and uneven load sharing.
He then used the ACE4710 for the NLB and one comment was: I have never seen such an even load sharing on my WTS.
Our only problem is to have a probe for the WTS which is good enough. Currently wer just check for port 3389 but sometimes it does not catch a faulty server, so we would like to have a TCL script to do the job but have not yet been able to come up with one, so if anybody out there has an idea to a TCL script for WTS then I'd be glad to hear about it.
HTH, Ingolf