Please use ExManCmd from terminal console while I am investigating the issue with ZXPInstaller
(1)Download ExManCmd
Windows
http://www.adobeexchange.com/ExManCmd_win.zip
Mac
http://www.adobeexchange.com/ExManCmd_mac.zip
(2) unzip the file
ExManCmd_win/ExManCmd.exe
ExMan_Mac/Contents
├── MacOS
│ ├── ExManBridgeTalkCmd
│ ├── ExManCmd
│ └── ExManEscalatedPrivilegeServer
└── Resources
(2)Open terminal app and type the following command
Windows
ExManCmd.exe /install Kwik.zxp
Mac
./Contents/MacOS/ExManCmd –-install Kwik.zxp
(3)List all
Windows
ExManCmd.exe /list all
Mac
./Contents/MacOS/ExManCmd –list all
(4)Remove Kwik
Windows
ExManCmd.exe /remove Kwik
Mac
./Contents/MacOS/ExManCmd –remove Kwik