Hi Mike, I found the “Computer Browser” application here “Report Available: Computer Browser” and here “https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/Tivoli+Endpoint+Manager/page/Computer+Browser”.
I followed the “Installation Notes” section and copied the files in \BES Server\wwwroot\computerbrowser.
You’re right!!! I didn’t pay attention and I copied the files to the wrong directory!! 
I should have to copy to \BESReportsServer\wwwroot\computerbrowser
Thank you very much! 