The browser automatically detects if the users operating system isģ2-bit or 64-bit and downloads the correct version of the Webex app. When users install Webex they can download the app and then open the Webex.msi file to install it. Webex can be installed either per machine or per user and can be installed by users or IT administrators. To install the Webex app, users don't need to have administrator access privileges on their machine. To view what version of the Webex app is installed, see Find Your App Version.