How can I process bitcoin payments from a hidden service on Tor? I had a very simple question for which I seem unable to find an answer. I want to set up a Tor hidden service and on it allow Bitcoin transactions. How can I make this happen? The server would be running Windows IIS and is mostly for personal use.

I had a look around at BitcoinD and Blockchain.info but somehow the information there does not resonate (or I am just too daft to grasp what they are saying)
My suggestion: Don't use windows AT ALL. Easiest way to get hacked.

also here's the answers you are looking for https://en.bitcoin.it/wiki/Tor

specifically this line:
"(after starting tor) Run bitcoind with -proxy=127.0.0.1:9050"