4 Software Installation4.1 Installing and Starting CA ClientNoticeIf an older version of CA Client is installed over a newer version, the software may not function properly.If you want to downgrade your version of CA Client, uninstall the current version, then install the olderversion.NoteWhen you start CA Client, make sure you are logged in to an account that has administrator privileges.1. Double-click the setup program according to your operating system configuration:• 32-bit version: Setup(World).msi• 64-bit version: Setup64(World).msiFollow the on-screen guidance to install CA Client.System EnvironmentIn this step, select whether you will be using CA Client in a thin client environment:• Non-thin Client Environment: Use CA Client as a regular program installation.• Thin Client Environment: Use CA Client in a thin client environment. Select this only when installingCA Client onto a thin client server.Optional Feature SelectionIn this step, you can select to add the following during installation:• CRM Toolbar: Add a CA Client toolbar to Microsoft Outlook.• IP Softphone: Install the IP Softphone program for use with CA Client. This option will not be availableif Thin Client Environment is chosen in the previous step.2. When you start CA Client for the first time, the screen below is displayed.Select the display language, and enter your international call access number and international area code.You must enter your international area code in order to proceed.Quick Reference Guide 254.1 Installing and Starting CA Client