Digital persona Applet not loading lib .jar

Question

I have made an applet for capturing finger prints but when I launch in on IE it gives this error:

java.lang.noclassdeffounderror: com/digitalpersona/onetouch/capture/event/DPFPDataListener

This how the code looks in JSP

<applet code="dp.verificationapplet" 
    archive="dp.jar,dpfpverification.jar, dpfpenrollment.jar,dpotapi.jar,dpotjni.jar,dpuareu_jni.jar,dpuareu.jar" 
    width="400" height="350" >
</applet>