Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. VMware, Inc. is the marketshare leader specializing in virtualization software. The company was founded in 1998 and is based in Palo Alto, California. The Company is majority owned by EMC Corporation. VMware's desktop software runs on Microsoft Windows, Linux, and Mac OS X. VMware's enterprise software, VMware ESX Server, runs directly on server hardware without requiring an additional underlying operating system.