Writing a new Diablo II CDKey Changer

[peoman]

I'm trying to make a CDKey Changer in Visual Basic but I'm very nOOb in programming.
I already know that :

d2sfx.mpq\data\global\sfx\cursor\curindx.wav ( User Name )
d2sfx.mpq\data\global\sfx\cursor\wavindx.wav ( Regular key )
d2char.mpq\data\global\chars\am\cof\amblxbow.cof ( Expansion key )


What i must do:
1.Make the GUI
2.Exctact the files from mpq files
3.Read the files
4.Edit the files
5.Compress the files in mpq files

1 & 2 done
3 not done (the files are encrypted)
4 & 5 easy to be done (but not done)

Does anyone knows how can i decrypt the files so i can read and edit them?
Maybe there is a open source (in VB) or a Componet that i can use.


Thanks in advance.

[DJ_MUTTA]

Well first of, why make a new one? The old works just fine.

[wm_hunter]

I have no experiance modifying MPQ files myself.. you can take a look at this page. I know that some game image files can easily be opened and edited with WinRar (used to do it in GunZ Online)... but I cannot remember how.

I will get back to you after looking into it more.

[Frai7ty]

Get win MPQ. You can find it Here. Woth it you can look in MPQ files, Get stuff out of them, and even out things in.

[peoman]

Well first of, why make a new one? The old works just fine.

The old one doesn't change to CD Key inside the mpq files but creates a new one cdkey.mpq

I have no experiance modifying MPQ files myself..

I already found a way to extract and insert files to mpq files.

The only thing i want to know is how to decrypt the text inside the files (curindx.wav, wavindx.wav, amblxbow.cof) so i can read and edit them.

I think i has something to do with storm.dll, but i am not sure, and i can't import this dll as a referance in Visual Basic.

[neounk]

Code:

a = LoadLibrary("storm.dll")
GetProcAddress(a,"FunctionName")

thats how you would import a function in VB. obviously it would be wise to read the registry to find out where d2 is installed then use that path + "storm.dll" in LoadLibrary. But if you wanted to save work you could just put the program in the d2 folder and use

Code:

public declare function "FunctionName" lib "Storm.dll" (ByVal Param1 as datatype, ByVal Param2 as datatype)