First of all go to your control panel -> add/remove programs and find something similar to Authentium Antivirus or some other "guard" that you don't know about- i think you should find it there.Perhaps you did install some other program that did Authentium Antivirus installation silently.
For future assistant use their help faq: http://authentium.custhelp.com/cgi-b...i=&p_topview=1
Don't execute step 5
Secondly, please execute this script:
It will just copy some files, please find the quarantine folder in sub folder of avptool,
QuarantineFile('c:\program files\common files\new boundary\prismxl\prismxl.sys','');
Zip it (remember to protect it with password virus and send by http://virusinfo.info/upload_virus_eng.php?tid=38583
Let us know, when you done.