The code seems to pass the compiler now, I get an error in the link phase:

    c:\dmc\dm\bin\link /de @scppn.lnk
    OPTLINK (R) for Win32  Release 8.00.13
    Copyright (C) Digital Mars 1989-2010  All rights reserved.
    http://www.digitalmars.com/ctg/optlink.html
    err.obj(err)
     Error 42: Symbol Undefined _stdout
    c:\dmc\dm\lib\NTSTUB.EXE
     Warning 2: File Not Found c:\dmc\dm\lib\NTSTUB.EXE

Maybe you are using a more complete version of the C++ compiler (or some other utilities) than what is available for free on the Digital Mars website.

Another potential problem is that I don't have Visual Studio installed on this machine.

On a more positive note, I think I will give D a try after this experience.

I think I had edited core.stdc.stdio

Try defining stdout as this:

    enum stdout = &_iob[1];

in core\stdc\stdio.d

It worked! Thanks.

So, I've commented: shared stdout = &_iob[1]; and added: enum stdout = &_iob[1];

Now, I have 5 executables HTODn.exe, msgsx.exe, optabgen.exe, SCPPn.exe, SPPn.exe.

Awesome! Meanwhile, I have filed a regression bug report for 2.079.