BUGHOLDER'S EPIPHANY

for context: @HunnyBon was making a proof-of-concept program that redirects urls that end with .mp3 and what-not to foobar2000, really neat, really cool, that sort've thing.
It worked fine but because I am silly, i had two different versions of foobar2000 so she had to make an update to the .exe.
... for some reason, windows defender decided that it was now a virus. Okay. fair, i suppose, means it's working. Regardless, i figured i needed to delete it and replace it to make things work and--
"you cannot delete this because it contains a virus"
what.