Installing QuickBooks Database Server Manager is a vital step for efficient multi-user access. Start by obtaining the installation file from the official QuickBooks website. Run the downloaded file and follow on-screen instructions. Choose the Custom option to select the installation location and features. During installation, the program prompts to choose between the Server Only or Server and Database Server Manager options—opt for the latter. Complete the process, ensuring firewall permissions are granted. Post-installation, open the Database Server Manager and scan the company files.