Blowfish key for old server Files

[ChaosRain]

So.. I'm playing on a server with mhtc or zszc files (not sure if they're both the same) and today they updated their client and packed them so that we cannot edit the media pk2..
I searched for help already but none of the tools or tutorials helped, would be nice if someone could help me^^
(Tell me if you need the sro_client.exe or something else!)

[Kape7]

Official PK2 files: 169841
ZSZC/SWSRO PK2 files: 2009Äê
EliteSRO PK2 files: calaña

Those are the ascii keys, you can use them for open ZSZC files if you have the Joymax pk2 tools.

As far as I know MHTC files use default pk2 key (official one) so any tool should work there.