did you configure windows to show file extensions before attempting to rename regedit.exe
to regedit.com? if my previous instructions do not work, here is a .reg file which
you can merge with your registry to solve the original problem:
http://members.rvglug.org/~magtec/temp/exefix.reg
simply right-click on the link above and choose to save the file to your desktop.
when it is saved, double-click it to merge it with the registry.
jdbmgr.exe can be replaced by using sfc.exe to extract the file from your windows
98 install cd-rom.