how to make executable jar file for a serial port project

Hi I am Murali

I have developed one serial port interface application

i have dowloaded and extracted the comm.jar file and placed in the (javax folder & com folder )current folder

while i try to run that application in cmd or Jcreater, It is working

i am able to send and receive datas

i have created executable jar file for that project

while i try to run that exe.jar com1 port not found messageis coming

How to make it work ...

[486 byte] By [murali_java_developera] at [2007-11-27 8:41:55]