Batch file limit

What is the maximum number of files you can open when using batch-processing?

I need to process more then 100.000 files one by one. The files are stored in a folder structure. I try Automate -> Batch -> Source: Folder, but it will not start with the first image.

Are there other solutions (Scripting, Bridge, more memory maybe)?

I think there's a command line limit built into the os. how this may translate realistically? not sure. couple hundred? a thousand?

I read about the command line limit, but I expected Photoshop to load each file separately and not all at once.
Then I have to let a piece of javascript load each file and process it. I will use the script instead the batch-processing.

I will use the script instead the batch-processing.

that would probably get around that limit. i'm not SURE about batch processing using it, but i know that droplets are subject to it.