The DDK has been superseded by the Windows Driver Kit (WDK). While the DDK can be downloaded openly, you may need to register for free and participate in the respective Microsoft community to download WDK. Microsoft said that the WDK should be used for the following reasons:
You should use the Windows 2000 build environments in the WDK to build drivers designed to run on Windows Vista, Windows Server 2003, Windows XP, or Windows 2000. The Windows 2000 build environment in the WDK includes updated headers and libraries for Windows 2000 Service Pack 4 (SP4).
Installing the WDK
Firstly, go to the WDK site to download the ISO. If you download the ISO, you need to burn it on the CD to make it useable. If needed, you can rename the .ISO extension to .IMG. If you want to get an idea how to install/extract the .IMG/.ISO files, go to this link. Newer DVD/CD-ROM can read directly the ISO, so no need for us to burn it and you can skip the ISO burning steps. Then we are ready to install the WDK. Insert the previously burned ISO CD into the DVD/CD-ROM drive and the autorun should be launched welcoming you with the following splash screen. Click the splash screen.
Select the features that need to be installed. In this case we select all the features. When you select any of the features, the description will be displayed at the bottom window. Click the OK button to continue.
Next, the default path was given to us. Edit or use the Browse button if you need to modify the installation path. In this case we just accept the given default path. Click the OK button.
Accept the EULA and click the OK button.
The installation progress window will start. You can cancel the installation any time.
Just accept the Device Simulation Framework (DSF) warning page.
The installation should begin. Just wait until it finish.
If there is no error, the installation should be completed successfully at this stage. Any error should be welcomed with Windows error message and you should take appropriate action for re-installation. Next, you can verify the installation through the Start menu as shown below.