After you’ve downloaded vLite and the other necessary components, start off by installing the .NET Framework and WAIK. You can follow the default prompts and do a reboot after the installs complete. After the reboot, start the vLite installer keeping all of the defaults.
1) Start vLite by going to Start, Programs, vLite, vLite
2) Click the “I Agree” button when presented with the license agreement.
3) You will now need to insert your Windows Vista DVD or point to a location where your installation files are located. Click Browse and select the location of your installation files. If you do use a DVD, vLite will first copy the files to your hard drive before continuing (Figure 1). Click Next.
4) On the Task selection page, select the Slipstream option and Bootable ISO (Figure 2). Click Next.
5) On the Slipstream tab, press the Select button and browse to the first service pack. Note that vLite will give you a warning if you are trying to do the integration on a Windows XP box – the slipstream did work for me on my XP box, but be warned that you may need to do the slipstream on a Vista of 2008 Server box.
6) After the first service pack was integrated, repeat the process with the second service pack.
7) Once the service packs have been integrated, move on to the Bootable ISO tab. You can either burn directly to a DVD or create an ISO image. Click the “Make ISO” or “Burn” button.
After a short while, you will now have a Bootable image (or DVD) with the latest service pack integrated. Keep in mind vLite can do much more than just integrate service packs!