Injecting Drivers with WDS win 7 image

I recently had this same issue and here's the basic steps of how to do it:

1. Mount the WIM file like this:

   dism /Mount-Wim /WimFile:<x:\img.wim /Index:1 /MountDir:<x:\mountPath>

2. Add the driver:

   dism /image:<x:\mountPath /Add-Driver:<x:\path\to\drivers> /Recurse

3. Commit changes and unmount the WIM file:

   dism /unmount-wim /mountDir:<x:\mountPath> /commit

The easiest way to use the dism utility is to open the "Deployment Tools Command Prompt" from the Microsoft Windows AIK section of the start menu.

Also, in relation to adding drivers to the Sysprep.inf, I found a better way to do it is to use the spdrvscn.exe 3rd party utility to generate the registry entries directly instead of adding paths to the Sysprep.inf file (which get used to update the registry).

Someone must've attempted to configure pxeboot before this and on our DHCP server they had previously configured option 067 to use pxeboot.com This would not work for some reason and when I changed the boot image under option 67 to use wdsnbp.com it magically worked.

http://technet.microsoft.com/en-us/library/cc732351(WS.10).aspx

The above link is a technet article on configuring network boot properly. Not really sure as to why this would allow me to capture using that boot image, but not install. But hey, it works.