When you convert the ESD file to a WIM file in the Windows source, you can integrate updates and drivers using a process called Slipstream, with the original setup disk to service the image or deploy ...

I have a file with a .rpm extension that I need to install on redhat. I'm guessing pkgadd would do the trick but it can't find pkgadd anywhere on the system, I did a type, a whereis, a which, no luck.