I was recently downloading optifine standard using 7-zip. When I went to drag and drop my optifine files into the minecraft.jar is said "Operation not supported". I lag really bad so some help would be greatly appreciated!
Optifine is so popular, I wonder why the boys at Mojang don't just license it and build it into 1.3? I mean I know they're really broke after selling only 30 godzillion copies of Minecraft, but maybe they could offer the author a Whopper meal and a name credit?