What is the switches i have used for installing this antivirus

can u please help me to how to install "AVG_Antivirus_Free_x86_747.exe"  sliently. What is the switches i have used for installing this antivirus.
The parameters I used were:
/silent=true

Now in the new version "AVG_Antivirus_Free_x86_747.exe" those parameters does not work. Please could anybody be so kind to let me know what are teh new parameters for customizing a silent install.
Thanks in advanced.
Best Regards.

Hello Mayank,
We apologize for the delay in responding. We would like to keep you informed that the parameter for the new version is /UILevel=silent .Thank you.