what networks do this.....

give you like a video player and it says like missing plugin click to install

From my experience a lot of free download places and those sites where you try and watch a recent movie will do that a lot. The file always seems to be a .exe and I don't really open it because it could have a virus. I don't know if anyone else has tried opening these files and had them work fine. I would like to know

I dont think its a network but rather affiliate.