Increase number of max Internet Explorer windows in Win 7

Hi, Simple project. I need someone to tell me (or even do it for me), how to increase the maximum number of Internet Explorer windows in MS Windows 7 (64bit). Right now, when I open about 80 windows, Internet Explorer crashes. It's not a memory problem, because the same thing happens whether I have 4GB RAM or 16GB. In fact, I can easily open 500 windows of FireFox or Opera. However, not with IE8 or IE9. It stops after around about 80 windows. Before you bid, you can try it yourself on your own computer. Try opening 100 windows of Firefox or Opera. It will work fine (assuming you have a good PC). Then try doing the same with IE8 or IE9. You won't be able to do it. After about 70 or 80 windows, maybe even earlier, it will cause you problems, with IE not displaying properly, and then crashing. If you can resolve this problem, I look forward to your bid. Regards.