I have a special case user who just installed a copy of stock Win7 Professional on his XPS 14 laptop. Is it possible to install the driver .CAB package without going through the re-imaging process? Can i use pkgmgr.exe in command prompt to install the package manually?

Package in question:

http://en.community.dell.com/techcenter/enterprise-client/w/wiki/3853.xps-14-l421x-windows-7-driver-cab.aspx

Thanks for your help!