How to write the command for several reource

Why don't you just try

{$R projects.res}
{$R extract.res}

I use two files

Sfx.rc in the file (extract RCDATA Sfx.exe)
and
Build.rc in the next file (extract RCDATA Build.exe)


{$R 'Sfx.res' 'Sfx.rc'}
{$R 'build.res' 'build.rc'}

I use this function to extract the information which I have need

procedure ExtraireEXE_sfx(CheminSfx: String);//sfx
var
 Res: TResourceStream;
 EXE: TFileStream;
begin
  Try
    Res := TResourceStream.Create(hInstance, 'extract', RT_RCDATA);
    EXE := TFileStream.Create(CheminSfx, fmCreate);
    EXE.CopyFrom(Res, 0);
  Finally
    EXE.Free;
    Res.Free;
  end;
end;

procedure ExtraireEXE_build(CheminBuild: String);//build
var
 Res: TResourceStream;
 EXE: TFileStream;
begin
  Try
    Res := TResourceStream.Create(hInstance, 'extract', RT_RCDATA);//
    EXE := TFileStream.Create(CheminBuild, fmCreate);
    EXE.CopyFrom(Res, 0);
  Finally
    EXE.Free;
    Res.Free;
  end;
end;


I have his errors

[Error] WARNING. Duplicate resource(s):
[Error]   Type 10 (RCDATA), ID EXTRACT:
[Error]     File C:\Documents and Settings\Administractor\Mes documents\Projects\Projects\build.res resource kept; file C:\Documents and Settings\Administractor\Mes documents\Projects\Projects\Sfx.res resource discarded.