A SSE2-capable CPU is necessary (Pentium 4 / AMD Athlon 64 or newer). These plug-ins are designed to work with Cubase VSTand other VST compatible applications such as Logic Audio and Peak on the Mac, WaveLaband FruityLoops on the PC and many others. VST plugins are used to expand a digital music studio, the same way hardware effects and instruments are utilized in a real studio.
A VST plugin is a software effect or a virtual instrument intended for use in a host program that supports Virtual Studio Technology.