FXProc
Real-time effects processor

FXProc is a basic effects processing program that offers two parametric EQs, 
distortion, delay, and chorus.

It requires a SoundBlaster series soundcard (16, 32, 64). 

Presets can be loaded with the function keys on the computer keyboard.  Type
"fxproc /?" to see the help screen.  The program should be run under pure DOS, 
not Windows.