If you are talking about producing Umlauts on a standard American keyboard on a PC, try this:


The following should work on most personal computers running various versions of the Microsoft operating systems. (A similar process is likely available for Apple systems, but I don't know the details.)

To insert an Umlaut character -- if you do not have a special keyboard with these characters -- do the following:

Hold down the Alt key on your keyboard
While doing so, type in the numeric code for the character on the numeric keypad.
The numeric codes are as follows
Ä 0196
ä 0228
Ö 0214
ö 0246
Ü 0220
ü 0252

Two additional useful characters that are not Umlauts:
ß 0223 (sharp s)
€ 0127 (Euro symbol. Some newer computers may have this symbol on the keyboard. Not all fonts will have this character.)

Important: You must include the leading zero in these character codes for them to work correctly.

-- Ernest