How do I get POV-Ray to render something without the GUI coming up each time?

I'm trying to batch render things with POV-Ray (several thousand things at that, trees made from Arbaro, since Arbaro lacks an automation feature) and the GUI is the biggest problem I'm having right now - I can't get it to stop coming up through command line execution. In the PROCESSINFO structure, I have the "SW_HIDE" flag set with (the appropriate flag set in the dwflags field to use it). In the CreateProcess function, I have the "CREATE_NO_WINDOW" flag set. Even with both of these, the GUI still comes up and I can't have it coming up every time. Is there a way to stop the GUI from coming up at all? Do I have to get an older version of POV-Ray just to use pure command line execution for a render without the GUI coming up? If so, what's the newest version of POV-Ray that I can get that has this pure command line execution without the GUI coming up? I've got everything else working now but the GUI is getting in the way. I only just want this to run in the background so I can, for example, eat, take a shower, or work on other things while this is going on. The unwanted GUI is the only thing left to deal with at the moment.

Use a .ini file perhaps?

batch file - Render multiple POV-Ray scenes on Windows - Stack Overflow
POV-Ray: Documentation: 3.3 Command-Line Options

Basically, my setup is this:

1. Generate the POV scene file to reflect the new seed used. This part has no problems.
2. Run Arbaro which generates the tree, saving to an INC file, always replacing it, waiting until Arbaro is done before advancing. This part has no more problems.
3. Run POV-Ray to render that tree to a PNG or TGA file with the file name including the seed, waiting until POV-Ray finishes before advancing. This part has a problem in that I can't get the GUI window to stop appearing each time I run POV-Ray. Until POV-Ray is closed, the loop won't continue meaning manual input is still required when I only want this to run in the background. Adding the "/EXIT" at the end of the command line does get the program to close once it's done, but the window still comes up which makes it difficult and unpredictable to click on the task bar to switch between windows which still means I have to get POV-Ray to stop bringing up the GUI every time I run it (plus, having these extra windows coming up can make typing or working in another program more difficult than it needs to be.
4. Repeat steps 1 through 3 for each tree I want to generate. This is several thousand trees I need so this can go on for several days, if not weeks. My automation routine is working, I just got to get the POV-Ray window to stop coming up each time I run POV-Ray. It's the only thing holding me back right now.

I don't suppose you've asked over here yet? -> POV-Ray: Newsgroups

This isn't really a C or C++ problem, it's more of a 'how to I get program foo to do what I want', in which case the best place to ask is on the forum / emailing list dedicated to the foo program.

Hmm... I think bar would work better here than foo.