When running the DevSuite 1.1 installer, DevStudio is not connected to the installed CDK.

Observations:

• All components removed before installation, does not help. (VirtualBox and Vagrant using Add/Remove programs, everything else directory-deleted, Environment variables cleaned).
• DevStudio says it can't start the Container Development Environment server. ('Failed to find Vagrant!' reads the error). If I open Launch Configuration, it lists the Main as "C:\HashiCorp\Vagrant\bin\vagrant.exe", which is not in the installation directory.
• It was noted that DevStudio marked itself 'completed' before Vagrant was installed. How does DevStudio know where Vagrant is?
• It's noted that DevStudio 'remembers' user settings (i.e. CDK registration user/password) from previous attempts. Where is this information kept? I must've missed something in cleanup.
• Tried full suite installation, then deleting DevStudio, then re-installing. (Hoping DevStudio would then find Vagrant in the right location, because it followed Vagrant's installation.) Result: No Container Development Environment server is present in 'server' view.