newbie -- how to build module?

[Alf P. Steinbach]

I first started with a Windows message box program and installing an 
IDE. I'm now using the VisualD plug-in with the Visual Studio 10 Shell, 
after battling a bit with installation of service pack 1 for Visual 
Studio. VisualD works, sort of, except the devs forgot that the resource 
compiler needs an INCLUDE variable so that it finds <windows.h>, so, 
silly as it is, the VisualD plugin can't be used directly as-is to 
create a modern look and feel Windows program. I solved it by running 
Visual Studio from the command line.

Anyway, I haven't yet started delving into the language documentation or 
any tutorials, just used gut-feeling, so I'd appreciate discussion of 
how to make this my first D console program less non-idiomatic <g>:


<code>
import std.stdio;
import std.ascii;
import std.string;            // chop

//import core.sys.windows.unicode_based_api;    <-- DOES NOT WORK.

char lastCh( string s )
{
     return (s.length == 0? '\0' : s[s.length - 1]);
}

void main()
{
     char[]    buf;

     writeln( "module core.sys.windows.unicode_api;" );
     writeln( "import core.sys.windows.windows;" );
     while( stdin.readln( buf ) )
     {
         string    identifier;
         bool    inIdentifier    = false;

         foreach( char c; buf )
         {
             if( isAlpha( c ) )
             {
                 if( !inIdentifier ) { identifier = ""; }
                 identifier ~= c;
                 inIdentifier = true;
             }
             else if( c == '_' || isDigit( c ) )
             {
                 if( inIdentifier )
                 {
                     identifier ~= c;
                 }
             }
             else
             {
                 inIdentifier = false;
                 if( isWhite( c ) )
                 {
                     // Ignore.
                 }
                 else
                 {
                     if( c == '(' && lastCh( identifier ) == 'W' )
                     {
                         immutable string name = chop( identifier ); 
     // removes last char
                         writeln( "alias ", identifier, " ", name, ";" );
                     }
                     identifier = "";
                 }
             }
         }
     }
}
</code>

The problem is, I can't manage to build the generated module.

The compiler is protesting something about the module being in a source 
code file that it can't read.

E.g. with "import unicode_based_api;" it exclaims,

<eror>
Error	1	Error: module unicode_based_api is in file 'unicode_based_api.d' 
which cannot be read	d:\winfolders\alf\my documents\visual studio 
2010\Projects\GenWinFuncAliases\GenWinFuncAliases\main.d	5	
</eror>

?


Cheers,

- Alf