I have using EAC (8.0) to deploy clients (EPSP 8.0). But after successfully deployment, the languages changed to the local languages (Traditional Chinese in my case). All the platforms (EAC and its server + client OS) are in English languages. I don’t know why the installation are in T. Chinese version. I know the issue should be caused by the location setting in the client OS. Is there any method to specify the default installation languages to be in Chinese?
Maybe with creating the packages in the console, you can create an admin.ini file where this is set to the language you desire.
I never used an admin.ini file, so cant help you there for configuring, but there are several evangelists that have used it and can explain.