diff --git a/plugins/ssh-agent.plugin.zsh b/plugins/ssh-agent.plugin.zsh
new file mode 100644
index 0000000..fa8c45e
--- /dev/null
+++ b/plugins/ssh-agent.plugin.zsh
@@ -0,0 +1,24 @@
+# Based on code from Joseph M. Reagle
+# http://www.cygwin.com/ml/cygwin/2001-06/msg00537.html
+
+local SSH_ENV=$HOME/.ssh/environment
+
+function start_agent {
+     /usr/bin/ssh-agent | sed 's/^echo/#echo/' > ${SSH_ENV}
+     chmod 600 ${SSH_ENV}
+     . ${SSH_ENV} > /dev/null
+     /usr/bin/ssh-add;
+}
+
+# Source SSH settings, if applicable
+
+if [ -f "${SSH_ENV}" ]; then
+     . ${SSH_ENV} > /dev/null
+     #ps ${SSH_AGENT_PID} doesn't work under cywgin
+     ps -ef | grep ${SSH_AGENT_PID} | grep ssh-agent$ > /dev/null || {
+         start_agent;
+     }
+else
+     start_agent;
+fi
+