You will need the following two tools, Deamontools lite and CDburnXP.
Home page :: DAEMON-Tools.cc CDBurnerXP: Introduction and News
In CDBurnxp, open a data disk. Click on the "Disc" in the left lower panel and rename to S-SW90. In the file menu, select "Save compilation as ISO". Save the ISO to your desktop, it should save as S-SW90.iso.
After installing deamontools lite, you'll find deamontools running in your systems tray (right hand corner with the clock). Click on the deamontools icon (blue circle with lightening bolt) in the task window to see Device 0 (your virtual DVD), click on Device 0 to open the "Select Image File" dialog box. Click on the Desktop Icon on the left, now click on the S-SW90.iso file to mount it.
You should now be able to install the 4.11 update.
Thank you
Russell