Summary: Use Windows PowerShell to easily find the grandparent of a path.

 How can I use Windows PowerShell to find a directory that is two levels up in a nested path?

 Use the Split-Path cmdlet and pipe the results to Split-Path. In the following example,
          the path to a Windows PowerShell module is split, and then the parent of that path is split again:

(get-module -l)[0].Path | split-path -Parent | Split-Path -Parent