didnt really know where to put this,

but ok, Idk how i did this but I have a bunch of folder for this game, And i need to open them to add more stuff to it (more maps, and mods) ,but somehow i messed it so whenever I click open folder its set to open with Internet explorer! so how can I change it back so the folder opens as a folder instead of it opening the internet every time i click on it.

What operating system?

I'm thinking you might try going into control panel and under folder options look at the view tab and "reset all folders" but I'm using XP Pro in classic view.

A better answer may well come along.