How to Trigger Task from External Event

[#1]

Hi All , I would like to trigger a  task from one of my existing qvw.  can someone help me what code should i write to trigger a task which is defined as "from an external event"   ..  So when this script get executed in my qvw, the job should kick off.

Thanks a lot.

[#2]

At the end of QVW (QVD Loader), i would like to put a code that will trigger external event for a task which will distribute other qvw

.