Quake3World

Is that possible to load files like .tga, .menu not from pk3? e.g from my "C" drive.

Not entirely sure what you are asking, but I'm going to guess that all you need is "/sv_pure 0".

sv_pure 0 is for pk3s located in etmain. I am asking if it's possible to load textures, scripts, menus, images not from pk3 but from my folder located for example on my C drive e.g "C:/et/files". I just don't want to use pk3 to load my stuff.

No, `sv_pure 0` is also for loading standalone files from disk, provided they're in your baseq3 (or ET's equivalent) or mod folder.

is there any other way to do that?

What exotic needs do you have that `sv_pure 0` isn't good enough?

I would like to use my own .menu files and textures on a server with sv_pure 1

Um, why not put those .menu files and textures inside a .pk3 then? The deal remains though: any pk3's you want to load while being connected to a pure server must be present on the server as well. You cannot have a client-side only mod.