How do I uninstall this?
1.) Delete the .cmd file you had created.
2.) Delete the "Launch BDO" shortcut file which is created when you run the .cmd script.
How do I download this?
This script needs to be in a form of a ".cmd" file which Undertow prohibits from uploading, so there is no download. Just follow the installation instructions.
Can I have the script to always launch BDO with Cerophono's Patcher?
Yes. Edit the script file, look for and replace "GOTO START" with "GOTO PATCH".