Evaluate The Active Region In Emacs Using Powershell

Write some PowerShell code in any Emacs buffer.

Select it, then M-x eval-region-powershell to evaluate as a PowerShell script block. The output goes into *Shell Command Output*.

Update: Much improved thanks to a comment by TarMil

(defun eval-region-powershell ()
  (interactive)
  (shell-command
   (concat "powershell -noprofile -encodedcommand "
           (base64-encode-string
            (encode-coding-string (buffer-substring (mark) (point)) 'utf-16le)))))