Installing windows 7 on mac book pro late 2013

Question

Installing Windows 7 on Mac Book Pro Late 2013
Background
Mac Book Pro Late 2013 uses a USB 3.0 hub for the external ports, the keyboard and mouse devices.
Windows 7 does not have the drivers to support USB 3.0 ports so these must be integrated into the boot.wim and install.win files so that Win7 can be installed and used on a Mac. If these drivers are not integrated when win7 is booted up then the mouse and keyboard will not function.
Requirements:
Two USB Flash drives
Access to a Mac computer
Bootcamp Assistant application
Access to a Windows computer with windows 7 installed
Windows 7 install disk or ISO file
WinUSB application
Windows Automated Installation Kit for Windows 7 (WAIK)
Method
On a Mac
First prepare a USB Flash drive by formatting it using disk util app, found in Application Utility folder, to FAT format this will store the Apple drivers that can be downloaded from Apple using BootCamp.
This will be called USB1
Using Boot Camp Assistant select 'Download the latest windows support software from Apple'  to get the files from apple for win7 for your particular machine these will be downloaded and copied to the USB Flash drive called USB1.
On a PC
Using a PC download a copy of WinUSB from  www.joshcellsoftwares.com this software can create a bootable USB with the win 7 files copied on to it.
Obtain a copy of Windows 7 either in DVD or ISO format.
Using WinUSB and the Win7 DVD create a second bootable USB Flash drive. This will be called USB 2.
About DISM
DISM is a windows application that allows the editing of windows image files with the extension of WIM.
If DISM is not installed on the PC it can be downloaded from windows website.
To test to see if DISM is installed, open up a command prompt. Then type 'dism' without the quotes this will display the help description of DISM. 
Drivers
The apple drivers need to be added to the boot.wim file so that mouse and keyboard can function during the setup phase.
The apple drivers need to be added to the install.wim so that mouse and keyboard can function after the setup phase.
The video drivers are also added as it appears to cause problems if they are not included.
Create a directory structure like this:
c:\appleboot\
drvrs
mount
win7x64install
win7x64boot
Create the following files in c:\appleboot\ with the following code:
adddrivers.cmd
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dism /image:c:\appleboot\mount /add-driver /driver:c:\appleboot\drvrs /recurse
================================================================================ ==========
mountboot.wim.cmd
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dism /mount-wim /wimfile:c:\appleboot\boot.wim /index:2 /mountdir:c:\appleboot\mount
================================================================================ ==========
mountinstall.wim.cmd
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dism /mount-wim /wimfile:c:\appleboot\install.wim /index:4 /mountdir:c:\appleboot\mount
================================================================================ ==========
unmountcommitfiles.cmd
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dism /unmount-wim /mountdir:c:\appleboot\mount /commit
================================================================================ ==========
Copy the following files into their respective directories:
Copy from USB 1 into drvrs the $WinPEDriver$ directory
Copy from USB 2 \sources\boot.wim to win7x64boot directory, this will store the original file
Copy from USB 2 \sources\install.wim to win7x64install directory, this will store the original file
Then copy boot.wim from win7x64boot directory to the c:\appleboot\ directory
Then copy install.wim from win7x64install directory to the c:\appleboot\ directory
Once all the copying is completed then run the following cmd files in this order:
For boot.wim
mountboot.wim.cmd - this will mount the file for adding of drivers
adddrivers.cmd - this will add the apple drivers to the mounted boot.wim
unmountcommitfiles.cmd – this will commit the changes and unmount the boot.wim
For install.wim
mountinstall.wim.cmd- this will mount the file for adding of drivers
adddrivers.cmd - this will add the apple drivers to the mounted install.wim
unmountcommitfiles.cmd – this will commit the changes and unmount the install.wim
Copy the files back to USB 2
Copy the boot.wim and install.wim files from c:\appleboot\ directory  to USB 2 sources directory and overwrite the files.
BOOTABLE USB
You will now have a bootable USB Flash Drive that has the additional drivers needed to install Win7 on Mac Book Pro Late 2013.
Mac Preparation
On your Mac using Disk Util reduce the size of the partition of Macintosh HD so that there is approx. 80GB free for the use of Win7.
Add a second partition, label it win7 and format it to FAT. This is so that win 7 setup can identify the correct partition.
Installing Windows 7
Insert USB 2 into your Mac and reboot, whilst holding the option key down.
After reboot there will be three icons displayed one is the Mac operating system, the second is the recovery partition and the third is an orange icon indicating a bootable USB drive.
Select this and win7 setup application will proceed to boot up with the keyboard and mouse functioning.
Follow the prompts and when the drive selection appears select the win7 partition and format it to NTFS so that win7 can be installed. When windows setup reboots press and hold down the option key and select the windows partition so that setup can continue to install.
After completion of installation of win7 insert USB 1 with the additional apple drivers. Goto the bootcamp directory and click on setup.exe file this will install additional drivers needed to use Win7 on a Mac.
Once completed reboot your Mac and select windows to allow the drivers to update in windows.

Answer 1

Yes this is correct that the /index:4 refers to the ultimate version of windows in mountinstall.wim.cmd
dism /mount-wim /wimfile:c:\appleboot\install.wim /index:4 /mountdir:c:\appleboot\mount
Users should do what applekryzzle suggested if you have a different version of windows. Thanks for the tip applekryzzle.
With regards to the Intel(R) USB 3.0 eXtensible Host Controller drivers they are the ones that are provided by apple via boot camp assistant.
These appear to work correctly and downloading as per instructions simplifies the procedure.
For those that are interesred the updated drivers can be found here https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=22824&ProdId=346 7&lang=eng&OSVersion=Windows%207%20%20*&DownloadType=Drivers
I have also seen in other discussions that some users get black screens i believe that it is the lack of video drivers which is included in the download from apple using boot camp assistant.
I'm certain that this works on Mac Book Pro Late 2013 models and i feel confident that this will work with other models.
I will appreciate any feedback if this works on other models.