What is a VMware tools
VMware Tools is a set of drivers and utilities that enhances both the performance of a virtual machine’s guest operating system and interaction between the guest and the host.
VMware Device Drivers – Guest operating system drivers for physical hardware to prevent drive compatibility issues.
VMware Services – Communication between the guest and host operating systems.
Service running in windows is called vmtoolsd.exe and in linux it is vmtoolsd
VMware User Process – The ability to cut and paste text between(also improves mouse pointer and screen resolution) the VMware Remote Console and the host operating system.
The installers for VMware Tools for Windows, Linux, FreeBSD, and NetWare guest operating systems are built into VMware Workstation as ISO image files. (An ISO image file looks like a CD-ROM to your guest operating system and even appears as a CD-ROM in Windows Explorer. You do not use an actual CD-ROM to install VMware Tools, nor do you need to download the CD-ROM image or burn a physical CD-ROM of this image file.)
When you choose VM > Install VMware Tools from the VMware Workstation menu, VMware Workstation temporarily connects the virtual machine’s first virtual CD-ROM drive to the ISO image file that contains the VMware Tools installer for your guest operating system and you are ready to begin the installation process.