

This is the part which requires an admin. If the atcliun.exe program is not launched with the RUNASADMIN flag, it appears to automatically relaunch itself with this flag and elevates the process. The uninstall launches the atcliun.exe program. "UninstallString"="C:\Users\\AppData\Local\WebEx\atcliun.exe" /x MEETINGS LANGUAGE=ENĪs we can see, this program is installed per user, not per computer. The uninstall string in the user registry is as follows:

Anyone can replicate this with the Webex Test Meeting. This application is the webex.exe program that gets downloaded when a user joins a meeting. It appears that the Webex meetings application can be installed by a user but requires an admin to uninstall it.
