In earlier versions of Asset Bank multi-lingual capabilities had to be enabled via a setting change and a license upgrade (in more recent versions the setting has been removed). If your Asset Bank has the setting supportMultiLanguage and you've got the appropriate license then to switch on multi-language support set the app setting supportMultiLanguage to true and restart Tomcat or the webapp.
For Tomcat to correctly interpret utf-8 encoded urls, the attribute URIEncoding="UTF-8" should be added to the Connector element on port 8080 in server.xml. If IIS is being used with the isapi_redirect filter (or Apache with proxy_ajp) then the AJP connector on port 8009 also needs to have URIEncoding="UTF-8" added. If Tomcat is hosting other webapps some consideration should be given to the impact of this, with an additional Connector being added if required.
Once multi-language support is turned on, you can add a new language by going to Admin->Content->Languages. When adding languages you can specify the name of an image file to be used as a flag icon to be displayed in the language selector. For this to work, the image must exist in the following location on the server:
Asset Bank has a number of images already installed, which are named according to their international country code (gb.gif, fr.gif, de.gif etc).
The ‘language selector‘, which enables users to choose in which language to view the library, will be shown at the top of the pages.