I have multiple accounts, and multiple devices sharing applications. To follow up the other responses, your App Store account can be separate from your iCloud, Messages, and FaceTime accounts. I use a separate account (Apple ID) for iTunes purchases than my iCloud account.
Running .EXE Files With WineHQ. From your Ubuntu command line type $ wine application.exe where application is replaced by the name of your .EXE file. This method will only work if your file is located in a path location. WineHQ gives these examples: Path=c:\windows;c:\windows\system;e:\;e:\test;f:\..
Ubuntu, one of the more popular distros for Linux newbies, is based on Gnome, though recent versions also use Unity, a streamlined, user-friendly interface that runs on top of Gnome. There's a version of Ubuntu, Kubuntu, that uses KDE and its equivalent of Unity, which is called the Plasma Desktop.