I created a console application using SMSLib API this is for checking the ports on the system and sending SMS from mobile with text typed in our console application. In the normal PC its working fine without any errors. But problem comes when I try to run the application on the laptop, whenever the application tries to check ports in the laptop, the laptop goes to dumping state (physical memory dump). As per my analysis, the prob could be the firewall, which is on. Does anybody have any idea why its working differently in system and in laptop.