Return code 1073807364 (0x40010004) on Windows when using COM to script Illustrator and Photoshop

Hi,

I'm using python via COM to run Illustrator and Photoshop on a Windows machine and I occasionally get this return code in python from the subprocess: 1073807364 (0x40010004). I've done some googling and it seems to indicate that that's a Windows return code for "the process is still running". Is it safe for me to let the process continue when I see that return code? Or does that indicate something else?

Thanks.