First off Accpac is multi-lingual. Sage Accpac supports installing more than one language at a time, and languages are associated with users. There is not a French version of Sage Accpac nor a Spanish version; instead you can add French or Spanish as installed languages. Then you can have some users running French, some Spanish, and some English. This is especially important for International companies with branches or divisions in several countries. Of course the data in the database only has one version of each string, so if a French user enters say a batch description in French then a Spanish user will see this description in French. But all the forms, reports and messages will be in the correct language for each user. Out of the box English, French, Spanish, and Chinese (Simplified and Traditional) are supported by Sage Accpac ERP.
Thanks to Stephen Smith for this information.