Thanks. Is this (in detail) what you are refering to?
""Afterinstalling SP1 for some users the correct version of win32hlp.exe is
not properly placed in the System32 folder. If this is the case replace the
older version with the version found in windows\ServicePackFiles\i386. Or
you can download it here:
Restore winhelp32.exe for XP or XPSP1 (Line 57)
http://www.kellys-korner-xp.com/xp_tweaks.htm
Manual Edit:
1. Insert the Windows XP installation CD into your CD-ROM.
2. Browse to your CD-ROM and change the folder to \I386
3. Copy the following files into a temporary folder on your hard disk:
Winhlp32.cn_
Winhlp32.ex_
Winhlp32.hl_
4. Click Start/Run, type in CMD and then press Enter.
5. Change to the temporary folder where you stored the Winhlp32 files.
6. Type the following commands:
EXPAND WINHLP32.CN_ WINHLP32.CNT
EXPAND WINHLP32.EX_ WINHLP32.EXE
EXPAND WINHLP32.HL_ WINHLP32.HLP
7. Copy Winhlp32.exe to your \%SYSTEMROOT%\ folder.
8. Copy the Winhlp32.cnt, and Winhlp32.hlp to the \%SYSTEMROOT%\Help\
folder.
9. Typically this folder is C:\Windows.
10. Delete the contents of your temporary folder. ""