Just reporting on a small issue I had with a machine and brand new Citrix Receiver 4.4 install. Clicking on a published application or desktop resulted in nothing happening. Seemed like the launch.ica file just wasn’t calling Citrix Receiver properly to start the connecting process.
IE wasn’t asking me to save or open launch.ica, this was differrent.
After a Citrix Receiver cleanup and reinstall the same problem remained. I checked the .ica file extension to see what program was associated with it but everything looked OK.
Clutching at straws I decided to manually associate .ica files with the Citrix Connection Manager.
This file by default is located in C:\Program Files (x86)\Citrix\ICA Client\wfcrun32.exe.
Once set, ICA files mysteriously started to launch. Something to look out for!
To set the association, you can choose default applications by file type within Windows or download the ICA file by following the steps located at http://www.jgspiers.com/capturing-analyzing-launch-ica/.