* Make sure the Num Lock function is on (green light will show above numberpad)
* Make sure you use the numberpad
(NOT the numbers in a single row above the letter keys)
* Press down and hold the Alt button with your left hand
* Type the following numbers on the numberpad (whilst holding down the Alt key), then release both.

Alt +

à	133
â	131
ä	132
æ	145
ç	135
é	130
è	138
ê	136
ë	137
î	140
ï	139
ô	147
œ	0156
ù	151
û	150
ü	129