I'm using the Windows Update Agent to install WMF 4.0 on my Windows 7 workstations. I unpacked the MSU to get the cab files and install them using DISM online mode with the following commands (one for x86, one for x64 systems)
dism.exe /online /add-package /packagepath:.\Windows6.1-KB2872035-x86.cab /packagepath:.\Windows6.1-KB2872047-x86.cab /packagepath:.\Windows6.1-KB2819745-x86.cab /quiet /norestart dism.exe /online /add-package /packagepath:.\Windows6.1-KB2809215-x64.cab /packagepath:.\Windows6.1-KB2872035-x64.cab /packagepath:.\Windows6.1-KB2872047-x64.cab /packagepath:.\Windows6.1-KB2819745-x64.cab /quiet /norestart
I get 0x800F081E as a return code, which isn't a Windows Error Message, so I think it's either a message from DISM or WIMGAPI, from what I found at http://msdn.microsoft.com/en-us/library/windows/desktop/hh825833.aspx. Restarting the system after receiving this error code results in a successful installation on all systems in testing, so I've flagged this return value to tell the Windows Update Agent that the system needs a reboot if that error code is detected. I just don't know what this message is supposed to be telling me, so I don't know if there's any action I need to take post-installation, or if I need to modify the command to make it work better.