This usually occurs when the application in the path property starts another application which is the real application.  That first application then usually ends.  This is what happens when you are using a command file in the path as well.  As soon as the initial application ends interrogation stops.

There are two ways to resolve this:

1. Set the adapter Start method to StartAndWait and set the TargetPath property to the actual application that ends up starting.  You can usually determine this by looking in TaskManager or by using ProcessExplorer.
2. Set the HookChildProcesses property on the adapter to True.  This will work if the initial application does not end once it has launched the second application.  The Start method on the adapter should remain set to Start.

Try both of these, one of them should meet your need.