Messenger requires that you have Citrix installed on your PC. We recommend Version 4.3 (sometimes shown as 22.214.171.124) or greater. Click Minimum Recommended Web Plug-In to download and install Version 4.3. When prompted, you will want to “save” the file to your PC. Step-by-step instructions for installing Citrix are available below.
If you already have a version of Citrix installed, the current version should probably be uninstalled before installing the new version. It would be a good idea to get your IT staff involved in this process.