Error while Installing Cloud Agent SEP 2013

Hi,

I deploy SEP 2013 by GPO. It works fine for some computer where as for this others it doesn't work.

In the symantec log message of these computers, I can see the error "One of the support libraries required for this Installation is unavailable"?

Running the exe of the installer manually generate the same error.....

Have you an idea of the name of the support  libraries that the symantec cloud agent need in order to install on a computer?

Best Regards,