HELP!!Missing Himem.sys, Dblbuff.sys and Ifshlp.sy!!!

[shiato storm]

hi - i turned on my computer [not this one - i'm at work now] the other day to be greeted with a list of 'error, windows cannot start' type messages with three files coming up as either missing of corrupted...after a bit of investigating it appears as though they are missing. they are
c:\windows\Himem.sys
c:\windows\Dblbuff.sys
c:\windows\Ifshlp.sys

i've run scanreg /fix which doesn't seem to do anything more than check the regisry and not the files themselves. It does com eup against a problem when checking c:\windows\system.dat similarly scanreg /restore doesn't offer any solution to the problem.
Its windows 98 and I have the original CD to hand so is there anything I can do - short of a re-install [aaargh!] to fix the problem? if i did re-inst. into the existing space on the HD could I just do it as a temporary thing and copy what would be the new files as above into the old windows folder and then scrub the re-intalled version and revert to the old one again? [bit of a round-a-bout way of getting the ones i need but i can't see any other way of doing it] or doesn't it work like that...
pleeeese help!
[computers - great when they're working, not great when they don't]

[nichomach]

Extract the files from the win98 cab files on the CD; see http://support.microsoft.com/default...b;en-us;296636
http://support.microsoft.com/default...b;en-us;129605

[shiato storm]

ah, cheers.
is the file 'win.com' important at all?cause along with all its other rambling errors it also spits out the message that win.com cannot be found...which is nice.

[nichomach]

Yes...very very important. Try http://support.microsoft.com/kb/q136630/

Win.com begins the loading of core system files when 9X is booting.

[shiato storm]

most helpful - right, i'm about to leave work and if i manage to fix it then i'll post back later this eve!!

[shiato storm]

well, it did work but only so far...
I managed to restore the himem, dblbuff and ifshlp.sys files into their right places in the c:\windows\ folder but when I tried to correct the win.com file i run into a few problems...
i extract the win.cnf file off the cd and place it in the right folder, I then rename it to win.com using the command 'ren c:\~\win.cnf c:\~\win.com
i then restart and again i get the error 'win.com missing
I perform a search and it seems it is not where I put it, its gone!
I go through the procedure of extracting it off the cd again - put win.cnf into the folder with the aim of renaming it again.
when I write out the command to rename it it says something along the lines of 'cannot rename, file name already exists in folder'...WTF??
i search for win.com but its not there...

whats going on?!