I had a compile error that I was missing a com reference. But on the pc of a colleague it compiled fine.

It was something from vlc, so I reinstalled vlc.
2 seconds after that my virus scan started shouting, alert, activeX element detected, removing.....

Which water buffalocock sucking piece of diarrhea stained retard (sorry for the retards I love you all a huggy bunch and you deserve better)
Uses an activeX element which even a virus scan can identify as completely unsafe