You could add the international keyboard. Ah, then add the Swedish keyboard too or type ALT + 0228 for ä and ALT + 0229 for å
Windows also has a Character Map program that you can copy and paste from.
Scroll down past the no support for xp for step by step instructions to adding a keyboard and how to access the special accents on the international keyboard. http://support.microsoft.com/kb/306560
And quite a bit further back, Proto-Indoeuropean had only common gender and neuter gender but for some reason split the common gender into masculine and feminine. In Germanic languages the trend is now to combine them back again; in Romance languages it is to combine masculine and neuter.