I can help with that. Your solution didnt work for me either. Afterburner remote server just didnt start with windows startup.
How I sorted it out is:
1. install msi afterburner, go to settings and check, "start with windows" and "start minimized".
2. download msi afterburner remote server, put it somewhere, for example, in C:\Program Files\ etc....
3. go watch this tutorial how to make programs start on startup https://www.youtube.com/watch?v=3krml2Hm8Sk
4. at one point, when he talks about "trigger", "at log on", "delay it by 30s", dont delay it. Let it run straight away.
5. go here: https://www.tenforums.com/tutorials/69693-enable-disable-startup-delay-windows-10-a.html
6. download Disable_Startup_delay.reg, or do manual registry edit. Run that Disable_Startup_delay.reg.
7. Now restart pc, all should start now with windows, both Msi afterburner and remote server.