I gave that a try but I must be doing something wrong because I am still getting the "This channel cannot be used" message.
Here is what I did...
1. Generated a common-key.bin using makekeybin.exe
2. Dragged my PAL Wiiware WAD onto _wwpacker-DLCRegion.bat
3. Selected USA as my region
4. Installed WAD as normal
Am I dragging the WAD onto the correct shortcut?
Thanks again for your help.