The latest version of my MMcL MackieControl.dll is now available: http://msmcleod.co.uk/cakewalk/MMcLMackieControlSetup.zip . The main highlight for this release is (somewhat limited) support for HUI control surfaces.
No need to uninstall the old version, just unzip the above zip file, make sure Cakewalk is closed, and run the installer.
The latest docs are here: http://msmcleod.co.uk/cakewalk/MackieControl-MMcL.pdf
Note: I'm treating the HUI support as "beta", as I've not got a real HUI to test this out on. Most of the development has been done using docs I've found on the internet, along with TouchDAW for Android for testing. If you've any problems on your HUI device, please PM me.