Slipstreaming is the process of integrating a service pack into the original installation DVD. You might want to do this for a couple of reasons. First, a slipstreamed installation DVD is useful when you need to reinstall Windows or install it on a new PC. A slipstreamed version of the software is far better updated than the original install. You may also want to create a slipstreamed installation DVD if you want to use System File Checker as mentioned previously. The installation DVD you use with System File Checker must include the service pack that matches the one installed on your PC. If it doesn’t, some operating system files will not match, and System File Checker will abort with an error.
Sadly, creating a slipstreamed service pack installation DVD for Windows 7 isn’t as simple as it is for Windows XP. With Windows XP, you simply copy the contents of your Windows XP installation disc to your hard drive and use an /integrate switch with the service pack to build it into the file structure. Then you burn back to a bootable DVD. This procedure changed with Windows Vista, and while you can still slipstream, it’s a significantly more complex process. Here, however, I’ll describe how to do it step by step.
What You Will Need
Before beginning the slipstream procedure, gather the following items.
• A spare hard disk or partition on which you can install a fresh copy of Windows 7.
• The Windows 7 Automated Installation Kit (AIK), which you can download for free from http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=6
96dd665-9f76-4177-a811-39c26d3b3b34 or by searching the Microsoft website for Windows 7 AIK. You will need approximately 1.5 GB of free disk space to install the Windows AIK on your PC.
• A blank CD or DVD.
• Software for creating an ISO file such as UltraISO, (available from www.ezbsystems.com/ultraiso) or WinISO (available from www.winiso.com). You might be able to download a free trial version of the software, which will be fine for a quick job.
Source of Information : Microsoft Press - Troubleshooting Windows 7 Inside Out