: To achieve version 11.0.23, you generally must install the base version (v11.0.00 or v11.0.10) first and then manually apply the .msp update patch.
First, install the base Adobe Reader XI (11.0.0). download adobe reader xi 11.0.23 offline installer
: The standard Adobe Reader download page only offers the latest, supported version of Acrobat Reader. : To achieve version 11
Alternatively, you can download Adobe Reader XI 11.0.23 offline installer from trusted third-party websites, such as: : To achieve version 11.0.23
: Sites like TechSpot host both the base installer and the 11.0.23 patch for easier access.