Huh?

So, I downloaded an iso file of a distro of Linux for eyeOS to use. I start browsing through the files, and I noticed a .cfg file. So I double-click on the file, thinking it'll open in Smultron. It doesn't. Instead, it opens a game called Battle for Wesnoth. I was freaked.

As far as I knew, I had not installed Battle for Wesnoth on my computer. At first, I was thinking to myself, "Is Wesnoth a virus?", or "Did I unintentionally download it from somewhere", cause I did give the pop-up, saying that this was the first time I had opened the app, and that I had downloaded it from the internet, yada, yada, yada. I did a Spotlight search, and nothing came up, even when I told it to search the system files.

Then I remembered that my little brother plays Wesnoth, so I thought, "Okay, maybe he installed it, cause the Windows box does have spyware, and eMac is running pretty slow." But then I disregarded it.

So, I double-clicked on the .cfg file to open it again, because of the "Show in Finder" menu item on the dock menu of applications. Turns out, it was using the Battle for Wesnoth game from the eMac, which I had connected to to try to get files which I thought were there, but really weren't. So, when I tried to open a file that really had no default application set, it went over to the eMac, and launched Wesnoth on my computer, cause .cfg was a file format that Wesnoth was programmed to recognize.

So, just a word of caution out to you guys. If you find that you're trying to open a file, and it doesn't open as expected, check to see if you're connected to shared Macs. Your Mac could be launching an application from another machine on your Mac.