I am looking at incorporating this tool for the Jenkins Windows Docker image. Currently, the default war path is hard coded to a UNIX style path (https://github.com/jenkinsci/plugin-installation-manager-tool/blob/072aae7105cad8b74f769fd93c2ec3f797629863/plugin-management-library/src/main/java/io/jenkins/tools/pluginmanager/config/Settings.java#L9).

It would be nice if it would do a check to determine if running on Windows (using java.io.File.separator or something similar) and use the path "C:/ProgramData/Jenkins" as the path root (this is a similar path to /usr/share on UNIX systems).