In 1996, Native Instruments released Generator version 0.96 - a modular synthesizer for PC, requiring a proprietary audio card for low-latency operation. By 1998, Native Instruments redesigned the program to include new hierarchy, and integrated third-party drivers for use with any standard Windows sound card. By 1999, Reaktor 2.0 (a.k.a. Generator/Transformator) was released for Windows and Macintosh. Integrated real-time display of filters and envelopes and granular synthesis are among most notable features. Plug-in support for VST, VSTi, DirectConnect, MOTU, and DirectX formats is integrated by 2000 (software version 2.3).