[RELEASE] DriverWiz - Make signed CABs from driver DLLs

Thanks to Chainfire at XDA for this... original thread here:

Code

http://forum.xda-developers.com/showthread.php?t=495145

Intro
Lately I've seen a lot of posts by people who are trying to replace WM internal or driver DLLs, either for hacking/testing or to release. Aside from the possibility they are just doing something that won't work in the first place, I've seen failure a lot of times because files aren't properly signed, or if they are, the certificate in question not being in the right certificate stores for it to have any effect. On some ROMs it will still work due to patched NK.EXE, on others it won't, its just not very reliable.

So, I present you with the correct way of doing this by means of a small tool that will do this for you: DriverWiz. It will take care of most of the stuff, and leave you room for additions. You will however still need some basic knowledge of the command line, if you don't have that, you have no business doing anything like this anyways.

Background
I use this technique myself all the time. When just hacking away, replacing system DLLs to trace calls, etc. It's also the same method used for the HTC-CA drivers and the ICS installer. This method works on most stock ROMs as well, though not on all of them (in rare cases some security policies are set that will prevent CAB installation)

Usage
It's fairly simple to use. Just extract the attached zip file somewhere, open the command promt, and change directory to where the zip was extracted. That's the installation part.

Now when you actually want to build a CAB file from a DLL, you use the DriverWiz.bat file.

Quote:
DriverWiz v1.0 by Chainfire

Usage:
DriverWiz.bat "Description" "CAB-name" "DLL-name-1" ["DLL-name-2" ...]

Examples:
DriverWiz.bat "New DDI" "ddi.cab" "ddi.dll"
DriverWiz.bat "Two DDIs" "ddi.cab" "ddi.dll" "ddiaux.dll"
DriverWiz will take care of signing the DLLs, inserting the certificate, etc, and you will end up with a proper CAB file for this kind of thing. Just copy it to your device and run it to install.

#1. You need to put the DLL files in the same folder as DriverWiz. Do NOT include paths in your DLL names
#2. Include the quotes in the command like in the examples!
#3. The first time you install a CAB made by DriverWiz, your phone may still give you a certificate warning. This is normal, don't worry about it.


Caveats
While this method has never failed me yet, it is possible that some files cannot be replaced this way. Just a disclaimer

Modifying
DriverWiz bases the inf file it will create to build a CAB from on DriverWiz.tpl. If you need to add registry entries to your CAB file, modify DriverWiz.tpl before you run the batch file. You can make other modifications too, add files, etc. Just take care that you don't break it

You can use your own certificates as well, instead of the supplied "Dummy" certificate that comes with DriverWiz. The files you will want to modify/replace are DriverWiz.pfx (used for signing) and DriverWiz.xml (used for injecting the certificate). I'll see about finding a reference for how to do that online and posting the URL here (someday). Creating a new certificate from scratch can be a frustrating effort - make sure you got openssl handy