Comment # 5 on bug 1000946 from Freek de Kruijf

(In reply to Wolfgang Bauer from comment #4)
> If KGPG is defined as preferred application, it should be opened in KGPG if
> you click on it.

I did remove *.asc from text/plain, now the application association is to KGPG
at the top. To be more precise the command is "kgpg %U". However this command
does not do the decryption. I don't see any result of calling that command with
the filename as parameter. Only the command "gpg -d <file>" decrypts the file,
after asking for the password of the key, however to standard output.
Previously the output went to the filename without ".asc".
Obviously calling a script which performs that function could be the solution.