For anyone new, unsigned .exe's (most of this site) triggers a windows unsafe message. Because it doesn't say who created it. No virus is detected this is just a new feature in windows.
It is currently mathematically impossible to achieve ending 3. Securing the conditions for ending 3 will always automatically secure the conditions for Ending 1 and 2, Which seems to overwrite the ability to recieve ending 3.
I have to admit, I thought the game would be a comedy about turning a general into a literal dog, like how you turn Commander Murdock into a frog in Rambo.