[Cairenn]

No, don't worry about the blizzard stuff. The addon button will only show up when you have some [other] mod installed properly.

So your install path for the one example we are looking at is:

C:\Program Files\World of Warcraft\Interface\AddOns\CT_BarMod\CT_BarMod.toc

correct?

If no, tell us what it is.

If yes, then do this:

I'm presuming you have a shortcut to WoW on your desktop that you use to launch your game. Go to the shortcut, right click on it. Scroll down to "Properties". Tell us what is in the little box beside either Target or Start In, please?