Suite Events

I would like to use a Suite Event to display a pdf file during install. Seemingly there is not much more to it than simply specifying something like [SETUPEXEDIR]\MyFileName.pdf for the File Action. Works great... almost! You have all seen the pop ups suggesting that you update Adobe when you open a pdf file… Well guess what happens in that case when you launch the display of a pdf by scheduling an action in an event? Nothing is displayed because there is an Adobe Reader Task that does not pop up a message because it is a background task and does not have access to the display… but it is waiting for a reply to the update prompt! So now you have orphaned Adobe Reader tasks that you have to kill off with Task Manager…. after you figure out what is going on. Am I missing something? Any help is greatly appreciated!

Edit:
A better solution is to display an MHT file instead of a PDF file... but the question remains.