I am getting system DLL user32.dll was relocated in memory error on windows XP. It gives some HHCTRL.OCX file having problem. I don't know anything about this problem. Can anyone here help me how to fix the issue. The system was working fine. But now I am getting this error constantly on the screen. I cannot work anymore. I think there were some recent updates in the system which has caused the issue. My brother is also using the same pc, so he might have installed something which generated problem. I hope this is not a virus issue.