AdobeReader 8 switches

[PunkR0ckz]

Ok so, when I type in the CMD box the following line: "D:\AdbeRdr8.exe" /?
it returns me the switches that Adobe Reader 8 uses... I want to use the switch /sALL (silent...) and the switch /sl "LANG_ID". The problem is that I don't know which "LANG_ID" I should use for the french language... in the dropdown of Adobe Reader 8, it goes like that:
English (English)
Français (French)

I am not sure about it, but I am thinking that 0 would be English and 1 French... or 1 English and 2 French... but I am not sure... if someone could tell me which one it is (1 or 2 for French) and if I need to use the "1" or "2" or only 1 or 2 would be ok... (I know it might be hard to understand... if you have questions about something i just said, reply with the question and ill try to say it in a better way )