help please

how can i make blackshot dll with vb.net

i don't know what "Blackshot" is, but seems a Game and if you want to write an dll for inject you can't write it in VB.NET or any other Language which use a Virtual Machine (C#, VB.NET, Java).
It seems Visual Basic 6.0 is compiled as unmanaged Code, so you maybe could use this, but i don't think you will get much Support on this.
Better start with ReadMemory, WriteMemory Actions from WindowsAPI to hack a Game.
This Stuff you could do with nearly all language.

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Ah i forgot:
It is possible to write a little dll which is injecting into the Game and is calling the .NET Engine in any managed Code output Language (ASM, C/C++, Pascal)