For 12.6 and later versions, to allow multiple DirectConnect installations on the same machine, Sybase provides the following environment files:
For UNIX:
$SYBASE/DC-12_6/DC_SYBASE.csh
$SYBASE/DC-12_6/DC_SYBASE.sh
For Windows:
%SYBASE%\DC-12_6\DC_SYBASE.bat
The $SYBASE/SYBASE.csh and $SYBASE/SYBASE.sh environment files (for UNIX) and the %SYBASE\SYBASE.bat environment files (for Windows) are no longer used.