I started trying FS December last year and now I am in stage to deploy it in live environment with my projects. When I built it last year, I remember I had issues getting the configuration correct and ceptral issues. I do not have good administrative / config file skills. I would like to compile and deploy the new version to take advantage of bug fixes and new features such as google voice integration. My questions: 1. When I go to properties of the solution, I see certain items (such as 16Hz, json, etc) unchecked under "Configuration properties -- debug". Should I check all items to get a complete build? If I check everything I get build errors in JSON module. 2. What is purpose of "_Build system", "_Config" and "_Downloads" folders? Which config files are used to direct the solution to include certain things and exclude others? 3. When I did first install, I used windows setup to install FS. Should I overwrite the files that come out of solution building process on top of current folder? Is it possible to run multiple instances of FS on same computer so that I can check transition works? Thank you for any help or advice.