Directly from the help documentation:
To display an End User License Agreement (EULA) in the Visual Studio Content Installer, you must embed this information in the .zip file. WinZip supports including embedded information through the Comment feature. For more information about WinZip, see http://www.winzip.com. For more information about the Comment feature, see the WinZip Help file.
Using WinZip 12.0, the Comment feature is found under View – Comment.
As soon as you run a .vsi that has this content embedded in it, you”ll see the EULA dialog box pop up.
Hey, i’m just saying…