Load Balance Web Farm on EC2 [closed]
Solution 1:
Since you're looking for a server-based, rather than appliance solution, and I'm not aware of any products that run on Windows, I guess your best bet is to use a Linux-based solution. You have a number of choices:
HAProxy
Apache and mod_proxy
LVS
...probably more I don't know about.
Solution 2:
Amazon just released a load balancing product that might do what you want. Check out aws.amazon.com/elasticloadbalancing/ for info.