updating a dll

yea thats easiely possible, but u have to know where its stored. with a hex editor you would never find it. ollydbg or ida pro are good tools to find the address to change. better way (for coders) is to read the pointers from a config file, like
can be done with GetPrivateProfileInt

the path to dll you get with GetModuleFileName, you cut the .dll and append .ini or .cfg, what ever. be sure you use the right hModule or you will get the path to Engine.exe. the first parameter of DllMain gives you the hModule u need

is that the new one????