After you install your instance of Process Manager, it is highly recommended to set up the Scheduler to run Process Manager automatically.  If upon the creation of the Scheduler  task, you do not see 'runProcessManager' in the drop down list, here is the fix.  Navigate to ADMIN, and then click on repair.  Next, click 'Repair Javascript Languages' which should clear the cache and make 'runProcessManager' visible.  Finally, check the create scheduler drop down and it should appear.