I've searched Google over and over and over, but because I don't know much about this I can't seem to word it right.

I have a DLL in progress for ROBLOX, and I've tried places like wntsmfk? (the leading LEGIT hackers of ROBLOX), but they have too many feuds among admins and their "experts" are simply trolls.
I think I should use CreateThread, but I'm not sure. I'm fairly new to C++ but coming from avid Lua, so I'm having a nice time learning the syntax.

I've found an address that I can use to change my player's name in game, but now I need to figure out how to change that address to a predefined variable. Can anyone point me in the right direction on how to set this value to one I choose, perhaps a documentation on this?

(The address provided here isn't the true one, example only)
#define ADDR_NAME 0xAAAAAAAA