Redmine

Hi,
I have a REDMINE istallation in windows server.
I'd like add the followings two pluguins:
https://www.redmine.org/plugins/recurring-tasks
https://www.redmine.org/plugins/redmine_app_notifications
But the information in order to install them speak me about DIRECTORIES that I don't have in my redmine installation.
It seem like I only can install pluguin in LINUX SERVER.
Or maybe what I need is to create this directories that the plugins require
If it is so, I dont know how create this directories.
Samebody can help me?
Can explain me where is the problem? Or what I need to do in order solve that.
Thanks very very very much for your support.