EXFO FTB-500 (Window XP) - Manual (Page 82)

Setting Up Your FTB-500
72 FTB-500
Selecting the Language of Operation
6b. Under Language for non-Unicode programs, select the desired
language.
7. Press Apply to confirm the changes. When the application displays a
message indicating that the new language will be effective at next
logon, tap OK.
8. Tap OK to return to the Control Panel window.