Auto start pgAgent

When my windows server 2008 start, both services postgres and pgAgent start because they are automatic. But if my db is frozen and I need to restart the postgres service, the pgAgent is also stoped, but when postgres restart, pgAgent doesn't. So I have to restart pgAgent manually. Is there a way to link pgAgent, so that it starts whenever postgresql starts? PD: If someone knows a proper tag for windows services please add it, I couldn't find it.