The issue of "Internet Explorer has stopped working"

When I used urlBlast.exe to launch IE, sometimes a dialog titled “Internet Explorer has stopped working” would show. If it happened, that test would fail. That means that no files (*_IEWPG.txt, *_IEWTR.txt, etc) would be generated.
The content of the dialog is as below,
A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available.

Did anyone come across this issue?
BTW, I found that it happened more often when I used IE9 than it did when I used IE8.
Any advice?