Missing key : Keyboard problem with ready made stickers



My "latin" keyboard (QWERTY) has one key less than a thai keyboard (the
backspace is larger on a qwerty so there is a missing key ).
I have set windows XP to THAI LANGUAGE but how can I use the thai
letter that is not "physically" on my latin keyboard ?
Is there a combination of alt+ctrl+....+ I can use ?

Regards,

Eric

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