Javakey and Netscape 4.01

INTERFACE INGENIERIE INFORMATIQUE (interii@cadrus.fr)
Wed, 10 Sep 1997 14:01:32 +0200

Date: Wed, 10 Sep 1997 14:01:32 +0200
From: INTERFACE INGENIERIE INFORMATIQUE <interii@cadrus.fr>
To: java-security@web2.javasoft.com
Subject: Javakey and Netscape 4.01

Why javakey's certificate are not recognized by Netscape Communicator
4.01 ?