To run a automated Enterprise Architect installation one needs the MSI file.
How to do this is described in the following Whitepaper: Install Enterprise Architect
With the new version of Enterprise Architect it is possible that the MSI file gets stored in another folder.
e.g.: “C:\Program Files (x86)\Common Files\Wise Installation Wizard”
the file is identifiable via its version/build number e.g.: “WISCC98E8B3FAAA4D09A813A44C9FA1A3EE_11_1_1111_17.MSI” (Version 11.1 will be installed) and that it is the jungest MSI file on your machine.