winboi32.exe
winmpk32.exe

theese i can not delete they say they are in use, but when i do ctrl+alt delete it says theyr not

Logfile of HijackThis v1.97.7
Scan saved at 1:30:22 PM, on 8/28/04
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\SYSTEM\WINBOI32.EXE
C:\WINDOWS\SYSTEM\WINMPK32.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\MY DOCUMENTS\HijackTHIS.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
O4 - HKLM\..\Run: [Sys] C:\WINDOWS\SYSTEM\WINBOI32.EXE
O4 - HKLM\..\Run: [SysA] C:\WINDOWS\SYSTEM\WINMPK32.EXE
O9 - Extra button: AIM (HKLM)

help plz they r causeing mass pop ups to appear at randome times