On all flavors of Windows prior to Windows Vista, the Windows install CD contained a folder called i386. After installing Windows, this folder is suppose to be copied to the C: drive. Once the folder has been copied, if user is ever installing a program or windows updates that require the Windows install CD, it will retrieve the files from the hard drive INSTEAD of prompting for the Windows CD.

On new versions of Windows, including Windows Vista, Windows 7, Server 2008 and Server 2008 R2, the i386 folder has been renamed to "sources". Should this folder be copied to the hard drive? Or do the new versions of Windows work differently (i.e. by installing all features on the hard drive to eliminate the need for ever prompting the user to insert their disc.)

It does not hurt to copy the sources folder, so I have been doing it. But if I could eliminate time wasted it would make installations faster which helps my customers' bottom line.