I am require the document and link for the DLP installation on multiple clients in single steps. No manual efforts will add.
If you have altiris server then deploy it from altiris
https://www-secure.symantec.com/connect/articles/installing-dlp-endpoint-agent-altiris
https://www-secure.symantec.com/connect/articles/deploy-dlp-endpoint-agent-active-directory-gpo
Article
https://www-secure.symantec.com/connect/articles/preparing-dlp-agent-uninstallation-password
Find the forum, check the solution comment
https://www-secure.symantec.com/connect/forums/dlp-agent-installation-1
##Edit##
https://www-secure.symantec.com/connect/forums/how-install-symantec-dlp-agent-using-logon-script-or-startup-script
Deploy DLP Endpoint Agent By Active Directory GPO
Installing the DLP Endpoint Agent with Altiris
Hello,
https://www-secure.symantec.com/connect/articles/d...
https://www-secure.symantec.com/connect/articles/i...
Check this thread also
https://www-secure.symantec.com/connect/forums/how...
https://www-secure.symantec.com/connect/forums/dlp-agent-installation
https://www-secure.symantec.com/connect/forums/how
https://www-secure.symantec.com/connect/forums/dlp-client-agent-installation
Check this thread
https://www-secure.symantec.com/connect/forums/deploying-dlp-client