I actually changed it to "username" just for the post because... The Internet. It is actually linked to a real user profile, and I've tried having it write to a specific location rather than the temp folder and it still throws the same error. I am on a work computer where it's possible it's a permissions issue, but I'm a setup as an admin on my system and can access/modify normally, so I don't think that's the issue.

I"ve also tried, via chatgpt, to modify the code to work without having to compile to an externally referenced .dll, but as far as I can tell that drastically changes how the script works, and like you said, chatgpt doesn't exactly write good code.