Internet Exploder 5.5

I have a friend who is getting a mpr.exe base page fault error. He has 98se on a 800mhz, 128 mem, on board vid, sound and NIC. A SOYO MB, with no probs. I checked out MS/KB and had him remove all *.pwl but would like to know what exactly the mpr.exeprogram is and how it works. By the way I have not heard back from my friend after I told him what to do.”)