Plain old RPGLE program in /Free

I was feeling pretty comfortable with my transition from RPGIII to RPGLE and /free until I needed to write a program from scratch that wasn't using *ENTRY to pass parms to the program. I must not understand the differences between the way RPGIII passed parameters and the way RPGLE operates.

What I have been doing (cheating) was to have a short, initial non-free calculation section like this:

C *ENTRY PLIST
C PARM MyParm
C/free

What I want to do is to do it "correctly". So after poking around the Internet I thought I came up with the solution:

D Main PR
D 8A
D*********************************************************
D*Main Procedure
D*********************************************************
P Main B
D PI
D MyParm 8A
C/free
// Body of the program here

It wouldn't compile until I used dftactgrp(*no) actgrp(*caller) on the H specs.

Although it compiles, when I run it in debug mode, the program is invoked but "hangs" at the command line, it never progresses to the first statement of the program which is where I have my breakpoint set.

So the question is: What is the correct way to write a simple program in RPGLE that takes parameters? What do I do with the *ENTRY PLIST method of passing parameters? I could go back to using the *ENTRY PLIST approach but I'd like to use the "correct" way, if there is such a thing...

Thanks,

Pete Helgren