This software provides an easy-to-use interface to SPICE, ensuring accurate and immediate simulation results that uncover flaws earlier in the design process and reduce prototype errors and time to market. With Multisim, you can quickly build a schematic with a comprehensive component library and emulate circuit behavior using the industry-standard SPICE simulator. NI Multisim software combines intuitive capture with powerful simulation to help you quickly, easily, and efficiently design and validate a circuit. New version NI Circuit Design Suite Power Pro 12.0.1, includes the familiar products: NI Multisim schematic capture and simulation environment and NI Ultiboard layout and routing. OS: Windows XP, Vista, Seven, Server 2003/2008 R2