These are part of enumeration methods for the COM (component object model) for Windows, as well as other random registry keys.
!!! Important !!! - There are various keys that have the string UMC. Make sure that you delete each instance of Behringer (there will be Line 1 / 2 and Line 3 / 4 entries. You'll have to delete all the keys that have any mention of UMC Behringer, INCLUDING all the mentions of the driver files (.sys) (Some of these are locked by the system and can't be deleted that's fine). You can find all instance ONE AT A TIME by hitting f3 AFTER YOU HAVE THE DELETED THE CURRENT ONE. Now what you have to do here is remove EVERY INSTANCE of 'UMC Behringer' that you find. Unplug the usb cable (You can leave the power cable in there). Uninstall the driver through Add / Remove Programs. This seems to me like a Behringer driver issue, so we need to undo the 'damage' done by it. Ok so listen I finally figured out the problem with this damn interface (Note: This a Windows issue I fixed, not sure about Mac).