Loftus needs Fusion to run a version of the Microsoft Windows operating system on his Macintosh PC so that he can access NetExchange Pro from Pershing LLC and Advisor Workstation from Morningstar Inc. Loftus relies on VMware Fusion (from VMware Inc.), a program that allows a user to run multiple operating systems on one physical computer. Loftus connects to online applications using Safari.īut he doesn’t have the capability to be Apple-exclusive. True, he relies on a lot of software made for Mac computers running the Mac OS X operating system (the “X” referring to the Roman numeral, not the letter the current version, 10.6, is known as Snow Leopard).