I read an article about Windows Home Server in APC. This is completely not my choice. I chose Linux. This is free of charge. Moreover, it works with low end computers as well.(Be fair, even I try Windows Home Server, I don't know whether Windows Home Server works well too). For another reason, I am a developer. I can free develop and customize the software in Linux. Most of software in Linux world are open source. Linux, this is my choice.