Windows Identity Foundation - On-premises STS on Windows Azure

I am trying to use federated authentication on Azure. I found an example of having a local sts outside of azure which is used to authenticate from a web role hosted in azure. This works great.

My problem is that I don't want to have an app outside of azure. Instead, I want to host the local sts website also in azure. So I will have two roles on the internet (1. my actual site, 2. sts).

I tried this approach by creating a new webrole and moving files from my original sts project. But I get compilation errors even when I reference the required DLLs. I also set "copy local" to true.

It will be very helpful if anyone can help me ..

thanks