OK, to make this easier for everyone involved (as there seems to be much confusion)
1) Download
this
2) Extract it to a folder on your PC then place tcpgecko.elf,
icon.png and meta.xml (both these files are in the meta folder) on your sd card in a folder called tcpgecko (sd://wiiu/apps/tcpgecko)
3) Download the codehandler.bin file from
here
4) Drop it in the same folder as you dropped the TCPGecko files on your sd card (sd://wiiu/apps/tcpgecko)
5) Boot your Wii U and run Haxchi/Mocha (If required)
6) Boot into HBL
7) Run TCPGecko
8) Load TCPGecko with codehandler (Press X on the gamepad)
9) System menu reboots, load up BOTW
10) Download
Breath.exe from here
11) Run it, enter Wii Us IP address, click Connect
13) Profit