IOSPIRIT writes on their website:
Recently we have experienced a rise in queries regarding the
availability of keyfiles for the - since beginning of 2000 -
discontinued title BlackIRC. In order to also serve the demands of
these interested users, we are now offering an online version of
"BlackIRC 1.1" for purchase. The online-version contains a keyfile and
the latest public version of BlackIRC.
At this point, we want to underline, that there is no more any support
available for BlackIRC and that the development has been stopped since
the year 2000. This offer thus does only address users, that don't
need any support and simply want to purchase a keyfile.