You can export an unmanaged client, see here:
http://www.symantec.com/docs/HOWTO81164
In the export package screen, under Export Settings, there is an option to export an unmanaged client. You can select this option.
Another helpful link here:
http://symantec.com/docs/TECH105498
https://www-secure.symantec.com/connect/forums/export-unmanaged-client-install-package#comment-7296331