Hi,
deleting dcppboot.xml is the same like seting it to locel inside of dccppboot.xml. Then I have to configure it totally new. That's a problem, as I don't remember all passwords of the hubs I use.
Downloading only the binary files and copy it into the DC++ folders even don't work as the program in this case continue using only one configuration.
It seems, that there is no possible way back if you have one time choose the wrong installation. I will the rename the program folders, install an old version of appex and copy all xml-files to that installation - hope it works.