[CR #350610] Sybase often recommends that you use different installation directories on the same Windows machine when installing multiple Sybase products. However, dsedit which is used to edit the sql.ini file, allows you to work with the sql.ini file only in the system’s %SYBASE% location.
Workaround: Either manually edit the non-%SYBASE% sql.ini file using a plain text editor, or consolidate all sql.ini entries into the same sql.ini file.