Are you using the OSD Wizard to do the installation, or is this a custom task?
Is this a first-time install on the target machine, or an upgrade? Any other Windows SDK or Visual Studio components already installed?
I want to be sure I’m starting from the right place to try to reproduce. I do see a KB article indicating to try manually installing as a workaround, but that doesn’t seem like much of a workaround to me. I see a lot of MS forum postings about the 15605 error as well and am going through those now.