VMware Tools is a suite of utilities that enhances the performance of a virtual machine. Although a guest operating system can run without VMware Tools, many VMware features are not available until you install VMware Tools. VMware Tools ServiceThe VMware Tools service starts when the guest operating system boots. The service passes information between host and guest operating systems. VMware Tools Device DriversDevice drivers smooth mouse operations, make VMware features such as folder sharing available, and improve sound, graphics, and networking performance. If you do a custom VMware Tools installation or reinstallation, you can choose which drivers to install. VMware User ProcessWith the VMware user process, you can use such features as copy and paste, drag and drop, and Unity with VMware products that support these features.