After a new installation of the Citrix Online Plugin v12.3.8, I went to launch an application from the Citrix Portal. Needless to say, it failed to launch with the error message above. If you press OK, a window pops up asking you to browse to the “ICAWebWrapper.msi” location. Not knowing where the MSI is located, I tried re-installing the plugin thinking it would be an easy fix. I got the same message again.
After about an hour of troubleshooting, I finally figured out this very simple fix:
The MSI file that it is looking for is extracted directly from the “CitrixOnlinePluginFull.exe” executable. Running it through 7-zip gives you the files below:
Simply drag out your MSI and the next time you try to launch an application, point it to your file location.. and problem solved!
I didn’t see this answer anywhere on the web so I figured I would share it on here.
Hope this helps!