Is this on a prebuild or custom build there? For a single driver file run a search with the exact file name to locate a download site like http://www.dll-files.com/dllindex/index.shtml
For creating a recovery disk a company will have methods for creating a set for a preinstall. But for a custom build having a full install disk onhand in case of any need to see a new copy of Windows go on is the obvious there.