The trusted roots file contains certificates for other servers that the local server treats as trusted when properly added to the system. If $SYBASE_CERT is defined, a trusted roots file is accessible by the local server (Adaptive Server) in:
$SYBASE_CERT/servername.txt
Otherwise it is in:
$SYBASE/$SYBASE_ASE/certificates/servername.txt
(for UNIX)
%SYBASE%\%SYBASE_ASE%\certificates\servername.txt
(for NT)
where servername is the name of the current Adaptive Server.