This is pretty normal. Microsoft itself even endorses this: The .NET Framework has a installation framework built into it (analogous to Java WebStart) called C

This is pretty normal. Microsoft itself even endorses this: The .NET Framework has a installation framework built into it (analogous to Java WebStart) called ClickOnce. It's a framework that doesn't require administrator access to install programs, but if you do that then you can't install programs to Program Files. So it installs the apps on a per-user basis to AppData.