Guitar FX BOX sits between sound input and output - signal is sampled from sound card input, processed, and than sent to the sound card output with VERY LOW LATENCY, virtually undetectable! This is achieved using DirectSound or WDM streaming for fast access to the hardware (sound card), and fast closely integrated DSP algorithms, optimized for real-time processing.Just plug ur guitar onto the sound card of ur PC. Download Link: https://rapidshare.de/files/18058842/Guitar_Fx.rar.html