How do I set the proxy for logstash plugin install on windows?

I'm trying to install the elapsed plug-in and keep getting a connection error.
Gooogling reveals that logstash doesn't use the browser proxy.

The documentation indicates to 'export' the proxy - but that's a unix command that is not know to Windows.

I tried SETting the ES_JAVA_OPTS but that hasn't helped (and ES implies elastic to me, rather than logstash).

So I need help. where do I configure the proxy setting for logstash (on windows) to go out to the internet?

thanks

Got help from https://github.com/elastic/logstash/issues/6044

Seems in addition to the ES_JAVA_OPTS you also need to set JRUBY_OPTS. So;

SET ES_JAVA_OPTS="-Dhttp.proxyHost=yourproxyname -Dhttp.proxyPort=3128 -Dhttps.proxyHost=yourproxyname -Dhttps.proxyPort=3128"

SET JRUBY_OPTS="-J-Dhttp.proxyHost=yourproxyname -J-Dhttp.proxyPort=3128 -J-Dhttps.proxyHost=yourproxyname -J-Dhttps.proxyPort=3128"

replacing the yourproxyname with the DNS name of your proxy, and also changing the port to match your proxy