Another way to apply this? With the communicator.adm
In this group policy people can provide the custom state url. It's more easy and less tricky. Btw, it seems the Microsoft documentation appears to be incorrect. The gray text block on Page 21 is missing "Windows Registry Editor Version 5.00". After trying to merge the reg file I found out this piece of text was missing. Based on that I wanted to find another way to apply the custom presence states.