The nature of variety of classical biomedical applications covering basic electrophysiology to cardiovascular hemodynamics is nowadays PC-based and being automated using software tools. Muscle Stimulator is used by physiotherapist to give physiotherapeutic treatment to the patients who have muscle related problems. A patient is subjected to electrical pulses using electrodes and it heals the patient. These signals are produced by implementing a Virtual Instrument code using software tools. This system is more accurate, compact, more flexible and self diagnostic. This is implemented and GUI is developed for the simulation of different current waveforms such as Galvanic, Interrupted Galvanic, Faradic and Surged Faradic which are generated in this work. It has flexibility to adjust its amplitude, frequency and duty cycle values. This will have same functionality as of Electrical Muscle Stimulator like waveform generation, varying parameters of current waveform (voltage, frequency and duty cycle), waveform display, selection of required signal as per patient etc. Finally the system itself can behave/operate as the central controlling unit.