Programming language to create Bots/Trainers for games?

Hey guys!
Can you tell me the easiest programming language or If it is not easy just an programming language which I can use to create bots for online games like this one:

https://www.youtube.com/watch?v=fKcv5q7s1mQ

(the pic is just to show you what I mean when say "bot" not need to be the same one.. I think this one is in C#... I want to make a packet bot, not autoit scripts using my mouse etc. )

and to be able to make trainers for PC games.. (I mean memory editing/writing like CE).

The definition of bot :
An program which is playing an game instead of you

C#.
but if you really needed something easy then use Basic.