TabWorks is a shell for Windows 3.x and Windows 95 and was developed by Xerox's XSoft division. TabWorks organizes files into tabs in a notebook-like interface. It was distributed with PCs from 1994 to around 1997 by several companies, including Compaq and NEC. The product was developed by XSoft, a division of Xerox PARC in Palo Alto, California, the prestigious computing research lab that invented the concepts of laser printing, the mouse, the Windows/Mac user interface and Ethernet networking.