error signature - internal error help!!!!!!!!!!!

Hi, we have had xp since Dec 2001, within last few weeks, under any browser can not play games on line (ex: cartoonnetwork, nick .com) etc. Rcv a message: IE or Netscape or MSN has experienced an internal error and will have to be shut down, then when I click details - it reads: error signature with alot of other info, (ModName/appName/Appver/ )Have done everything I can think of , such as - deleting all cookies, clearing history, tried different user, used a restore point, tried starting in safe mode. Obviously something I assume is corrupted, and I am not that experienced enough to figure out. This is upsetting me so much (plus a verry unhappy son). If anyone could offer some advise as to where to begin to figure this out or how to fix, I would be VERY MUCH APPRECIATIVE!.
Thanks
Barb

 

What is the full error message?

 

error signature

Exact error message is: error signature: AppName: ierxplore.exe (or) msn7.exe. Appver 6.0.2600.0 (or) 7.0.21.900 ModNameL iml32.dll ModVers. 5.1.02. Offset 00068c04.