Hello,
All of the files that I have tried to download so far appear to be invalid
So far I have tried
Windows 10 Pro 64Bit
Windows 8.1 Professional x64
Windows 7 Professional Service Pack 1 64-Bit
Windows Vista Home Premium Service Pack 2 32 Bit
Both of the XP Home Edition x32 Service Pack 3

I have tried on several different computers. None of the downloaded files will open or unzip.
The error is always the same “ Invalid file”

Ideally I would like to have a full set, as I have a lot of different computers
I did find an old file on an old XP computer. It was at C:\WINDOWS\System32
That appears to work on other XP computers, but no other computers.
I downloaded the official Microsoft windows 10 from here
https://download.microsoft.com/download/C/9/7/C971CBA9-01A1-4A68-A028-67F75A55B639/EIE11_DE-DE_MCM_WIN764.EXE
That put a winhlp32.exe at
C:\Windows\WinSxS\wow64_microsoft-windows-winhstb_31bf3856ad364e35_10.0.18362.1_none_05b828a6bb0002ac
If I try to run that winhlp32.exe on my Windows 10 machine , then nothing happens, but since running the downloaded EIE11_DE-DE_MCM_WIN764.EXE any .hlp files I double click on will work. ( They did not work before I ran the downloaded EIE11_DE-DE_MCM_WIN764.EXE )
That file won’t run on any other computer. On my Win 8.1 machine, for example it tells me that the file is not valid for my operating system ( I expected that )

So in short, can you suggest how I might get hold of any winhlp32.exe files to try
_._______________
( Also it is very difficult to read your captcha on some of my computers. I usually need a few tries )

Thanks
Alan