Abstract: A method is proposed to integrate any form of biometric technology (e.g. fingerprint/face/iris/retina recognition, hand geometry, etc.) into a host software application without requiring runtime or software code compilation between the host and biometric software. The biometric software runs as a separate executable, independent of the host software, and communicates with the host software over a protocol supported by the host and biometric software operating system. The biometric software utilized by the host software can be substituted with another biometric software type with very little development effort. Hence, the proposed method will enable commercial software providers to rapidly integrate various biometric technologies without: a) requiring an extensive amount of knowledge and development resources regarding the selected biometric technology; b) having to compile the host software with the biometric software, which otherwise creates a burdensome development, maintenance, and support environment.