You can download ExpressFX1 1.0 from our software library for free. This software is a product of Sony Creative Software, Inc. The program lies within Multimedia Tools, more precisely Music Production.
From the developer:
ExpressFX1 is a DirectX audio plugin that provides streamlined effects for use with Sound Forge XP 4.5 and ACID Music 1.0. Each effect provides parameter adjustments to give you precise control over your sound processing. It offers Distortion, Flange/Wah-Wah, Reverb, and Stutter effects.
You may want to check out more software, such as Virtual Guitarist 2, Waves 360 Surround Tools Bundle or Voxengo LF-Max VST, which might be similar to ExpressFX1.