I have nothing “unusual” on my system unless you consider audio drivers for other devices on my system as unusual. I have audio drivers for my sound card and my video card, plus there are Realtek audio drivers, but I don’t use the mother board audio and have it disabled in the BIOS. I also have video card devices disabled because I don’t use its audio features.
While I was typing this, I got the expiration message for DPS again and can’t use it. If I remember correctly, when this happened before an uninstall and reinstall fixed it.