It is hard to understand from an outsider, and it took me a lot of training to understand what is going on.
More people should try to understand....
I try not to let Trojans anywhere near my backdoor.
So, yes, that is long ago, but Windows 2000 implies at least the year 2000.
Linux didn't complain at all.... Yes, I was running Linux back then in dual boot.
You're right, it's not correct in English, but you might see that the error is understandable if you're not a native English speaker. I'm not and funnily enough, I am from Luxembourg.