>I am facing with "System.Runtime.InteropServices.SEHException: External component has thrown an exception."
>could anybody please help?
Additionnally to what Viv said, you probably know the line which is causing this. If you Try/Catch that line, you will then be able to obtain the exception properties that Viv mentioned. With that, you will get the information, at least some relevent information about what is causing this.