... lmao, D2HackIt is a program that sends packits to the server to make it allow you to do things you aren't able to normally do, or make it easier to do things you are able to do.
This is what you do:
Download d2HackIt from the stickies.
Download whatever module you want to use with it.
Put both in same folder.
Load D2.
Enter a game.
ALT+TAB out of game and find the folder you put D2HackIt and the Modules you want to use.
Double Click on the Loader.exe.
Close the folder D2HackIt and the Module/s are in.
Maximize D2 again.
Type ".load (module name)".
Type ".(module name) help" to see the commands for that module.
Enjoy!
Do not forget to read the ReadMe... it is named Read Me for a reason, it wants you to read it.