I took the code from https://gist.github.com/trbngr/5083266 that hosts eventstore with topshelf and created a project based on it: https://github.com/mastoj/EventStoreWinServiceWrapper. It quite simple so far, but it works for our needs at this point.
And now I found this: https://github.com/trbngr/EventStoreService, you should probably use this instead.