Take a look at their FAQ: "Q: Why is Qimo4Kids.com running on Windows and .Net? A:Both the design and hosting for this website is being donated to us by TM

Take a look at their FAQ: "Q: Why is Qimo4Kids.com running on Windows and .Net? A:Both the design and hosting for this website is being donated to us by TMR Agency. While they are not a Linux shop, they wanted to be involved in helping us get educational software to kids in the capacity they could. We are extremely fortunate and grateful for the amount of design and development effort they put into our website, as well as their continued hosting space and bandwidth."