Lowell,
In Win 98, you can repair IE. I think you will see the option under control
panel, add/remove programs. Highlight IE, click on add/remove, select the
repair option. It will already have the files it needs available.
For info on this, see the following url
http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/Q194/1/77.asp&NoWebContent=1
If that doesn't work, look for a you can revert to the previous version IE 5,
or you can download a new copy of IE 6, run IE Eradicator to completely rid
yourself of your current version, then reinstall IE 6 from the file you just
downloaded.
HTH,
Steve, K8SP