@marco999 - So I did a clean install using the GOG version of WCP as well as a reinstall of the MUP pack using the link provided. I was able to install and run everything fine. I did not get the CD error. The Prophecy EXE shows as last updated 4/1/2017. So it is the correct version.
Can you please walk me through the steps you did just so I can see if there's anything in there?
@marco999 - this is a known issue. I believe @Pedro and @gr1mre4per are working on/have a fix for this in a new branch. We will need to incorporate that into the next release. Hopefully they can provide a standalone enhancement.
I'm not sure if the gog version loads HCl's dll. Try this, there should be a wcpunl.ini file, edit it, there should be a [CustomDlls] section. Make sure the first line under it is: File1=wcphr.dll and see if this helps.
You'll need the wcphr.dll in the wcp directory, ofc!