Using opcodes to get a spot in memory.

Hello all,

I have been making a small program that is basically a trainer with a few random things like, a chat log that does not delete it self and the total of deaths /kills you had, to who, and from what.

Every time the game is launched the location in the memory is changed, I have not learned enough to figure it out programmatically. I have asked a few of my C# friends, but nothing really in a specific direction. I just figured I need the OP Code that changes it?