Is flash step patched?

[Drugticker]

I guess it still works, but on new maps it may give you errors
And it is called "air wall pass" or AWP.
I've done it a long time ago, as I've been in Zero Team (the glitching clan) and just to tell you, it isn't that easy to just jump, crouch and Fps and you're in.
You need to be on the right height and the difficultly depends on the texture of the wall, if I remember it rightly..
Maybe you just hit up the clan leader of Zero Team to ask him teaching you it or something like this.
Also here's the video:


And regarding to Flash step, I think it has been patched, at least it gives me errors really often