Extract a new copy of RUNDLL32.EXE and CONTROL.EXE from either your Windows 98 CD or from the CAB files on your hard drive, whichever you have, to the Windows folder, using the "Extract one file" option of System File Checker (SFC).
See here for details and examples:
How to use System File Checker (SFC) to extract a file:
http://support.earthlink.net/mu/1/psc/img/walkthroughs/windows_9x_nt/dialers/dun
_1.3/0850.how.to.sfc.psc.html
and
http://users.westelcom.com/rogersr/sfc.htm#1pp
HOW TO: Extract Original Compressed Windows Files:
http://support.microsoft.com/default.aspx?scid=kb;EN-US;129605#5

Signature
Glen Ventura, MS MVP W95/98 Systems
http://dts-l.org/goodpost.htm
> Hey when i try to change my desktop stuff or i try to go
> to the install/unintall program i get a message
[quoted text clipped - 3 lines]
> why all of a sudden i cant use my own computer.. any tips
> on why you woudlk think this woudl happen?