Incorrect DOS version, missing and corrupted windows files

At start up, my screen displays: The following files are missing or corrupted:C:\windows\SETVER.EXE
There is an error in your CONFIG.SYS file on line 8
C:\windows\command\display.sys
There is an error in your CONFIG.SYS file on line 10
C:\windows\command\country.sys
There is an error in your CONFIG.SYS file on line 11

The following files are missing or corrupted:
C:\windows\dblbuff.sys
C:\windows\ifshlp.sys
incorrect dos version
incorrect dos version
cannot find WIN.COM
unable to continue loading windows


It would be nice to use my computer for a change.
Any and all help will be greatly appreciated.
Thank you in advance. robone

 

Have you tried booting up with your boot up disk and re-installing Windows over the top to replace damaged/missing Window files?