VB.net Class Library PROBLEM :(

Okai So I've Created a New Project in VB > Class Library

Because I'm Creating a Dll to WriteMemory In Game.

So That's My Code :

PublicClass Class1PublicSub Msg(strMessage AsString, strTitle AsString)
        MessageBox.Show(strMessage, strTitle)EndSubPublicFunction Hotkey()
        MessageBox.Show("Hack Was Injected.","ROSeik WallHack")
        WriteMemory(&H743A30,NewByte(){0,0,0,0,0})EndFunctionEndClass

And Now This Public Function I Need to Call it Once The Dll is Injected in My .exe Game

How Can I Make this ?