The file ~/.kde2/share/config/kalarmrc holds your KAlarm preferences.
The calendar file which stores your scheduled alarm messages is
~/.kde2/share/apps/kalarm/calendar.ics, unless
a different calendar file is specified in the preferences file.
4.2 What configuration files does the alarm daemon use?
The file ~/.kde2/share/config/kalarmdrc holds your alarm daemon preferences.
The file ~/.kde2/share/apps/kalarmd/clients holds details of client
applications which have previously been registered with the alarm daemon, and their calendar files.
4.3 What are the application names of KAlarm and the alarm daemon?
KAlarm's application name is kalarm, and the alarm daemon's
application name is kalarmd.