An MSI can be generated and installed by following the 4 steps below. 

1. Generate an MSI using this command BookshelfSetup.exe /s /x /b"<TARGET FOLDER>\BookshelfSetup-MSI" /v"/qn"
2. Open a command window in administrative mode (open the start menu, type cmd, right click Command Prompt and choose Run as Administrator)
3. Change to the directory that contains the MSI
4. Run the following command "VitalSource Bookshelf.msi" /qn

12/20/2016 Update for Bookshelf Windows 7.1

Bookshelf 7.1 requires "Microsoft Visual C++ 2015 Redistributable Update 3". If it's not installed, the Bookshelf installer installs it for the user. Below are steps to extract an MSI from the "Microsoft Visual C++ 2015 Redistributable Update 3" EXE.

1. Download either 32-bit or 64-bit Microsoft Visual C++ 2015 Redistributable Update 3 from here: Microsoft Visual C++ 2015 Redistributable Update 3
2. Run the update EXE to install it.
3. After installing it, open Windows Explorer and type this in the address bar C:\ProgramData\Package Cache and press enter.
4. Open the folder that has a "Modified Date" as the same time as your installed the update in step 2.
   
   
   
   
5. Click on the "packages" folder.
6. Click on the "vcRuntimeMinimum_amd64" (or a similar folder name if you installed a 32-bit update)
7. You should now see two files:
8. vc_runtimeMinimum_x64.msi (or similar if you installed 32-bit)
   cab1.cab
9.  Use these two files as your MSI installer to install the "Microsoft Visual C++ 2015 Redistributable Update 3".

When running the vc_runtimeMinimum_x64.msi MSI, if you get an error saying you have to run the EXE, try running the MSI at the command line with "ADDEPLOY=1" parameter:  vc_runtimeMinimum_x64.msi ADDDEPLOY=1