quickduck

hi all, i have kaspersky antivirus compressed in this form (kav5.0.121.exe) and i want to decompress it in order to obtain setup.exe and setup.iss for a silent install. But winrar cannot, either winzip nor pkzip!!!!!!!! Does anyone have an idea for helpin' me, please i am waiting desperately

plz need switch for kaspersky antivirus personal 5 i looked all around the forum, but in vain, please help !