MATLAB: Mex files and compiler

MATLAB Compilermex compiler

Hello everyone,
I have trouble to execute mex files and to set up my compiler…
My MatLab version is R2011b, so according to this page http://www.mathworks.se/support/compilers/R2011b/win32.html, it should support the following compilers (that I have): Microsoft Windows SDK 7.1 (with .NET Framework 4.0) and Microsoft Visual C++ 2010 Express.
When I use the command mex -setup, I can select the visual c++ compiler for example, and it seems to work just fine (see a copy of it at the end of this post). But after that, when I want to use it, here what I get :
——-
>> mex hello.cpp Error: Could not find the compiler "cl" on the DOS path.
         Use mex -setup to configure your environment properly. 
C:\PROGRA~1\MATLAB\R2011B\BIN\MEX.PL: Error: Unable to locate compiler.
Error using mex (line 206)
Unable to complete successfully.
——-
I read a lot on the internet but unsuccessfully, I did not find any solution for my current problem… Do you think it is about the note 3 at the end of the page of the previous link ? Or because I run a 64 bits machine ?
For information, here is what I have by using the mex -setup command :
——-
>> mex -setup
Welcome to mex -setup. This utility will help you set up a default compiler. For a list of supported compilers, see http://www.mathworks.com/support/compilers/R2011b/win64.html
Please choose your compiler for building MEX-files:
Would you like mex to locate installed compilers [y]/n? n
Select a compiler:
[1] Intel C++ 12.0 (with Microsoft Visual C++ 2008 SP1 linker)
[2] Intel C++ 12.0 (with Microsoft Visual C++ 2010 linker)
[3] Intel C++ 11.1 (with Microsoft Visual C++ 2008 SP1 linker)
[4] Intel Visual Fortran 12.0 (with Microsoft Visual C++ 2008 SP1 linker)
[5] Intel Visual Fortran 12.0 (with Microsoft Visual C++ 2008 Shell linker)
[6] Intel Visual Fortran 12.0 (with Microsoft Visual C++ 2010 linker)
[7] Intel Visual Fortran 11.1 (with Microsoft Visual C++ 2008 SP1 linker)
[8] Intel Visual Fortran 11.1 (with Microsoft Visual C++ 2008 Shell linker)
[9] Microsoft Software Development Kit (SDK) 7.1
[10] Microsoft Visual C++ 2005 SP1
[11] Microsoft Visual C++ 2008 SP1
[12] Microsoft Visual C++ 2010
[13] Microsoft Visual C++ 2010 Express
[0] None
Compiler: 13
Your machine has a Microsoft Visual C++ 2010 Express compiler located at C:\Program Files (x86)\Microsoft Visual Studio 10.0. Do you want to use this compiler [y]/n? y
Please verify your choices:
Compiler: Microsoft Visual C++ 2010 Express Location: C:\Program Files (x86)\Microsoft Visual Studio 10.0
Are these correct [y]/n? y
*************************************************************************
Warning: MEX-files generated using Microsoft Visual C++ 2010 require 
         that Microsoft Visual Studio 2010 run-time libraries be  
         available on the computer they are run on. 
         If you plan to redistribute your MEX-files to other MATLAB 
         users, be sure that they have the run-time libraries. 
***************************************************************************
Trying to update options file: C:\Users\Antoine\AppData\Roaming\MathWorks\MATLAB\R2011b\mexopts.bat From template: C:\PROGRA~1\MATLAB\R2011b\bin\win64\mexopts\msvc100freeopts.bat
Done . . .
************************************************************************
Warning: The MATLAB C and Fortran API has changed to support MATLAB 
         variables with more than 2^32-1 elements.  In the near future 
         you will be required to update your code to utilize the new 
         API. You can find more information about this at: 
         http://www.mathworks.com/support/solutions/en/data/1-5C27B9/?solution=1-5C27B9 
         Building with the -largeArrayDims option enables the new API. 
**************************************************************************
——-
Or again :
——-
>> mex.getCompilerConfigurations()
ans =
mex.CompilerConfiguration
Package: mex
Properties:
          Name: 'Microsoft Visual C++ 2010 Express'
  Manufacturer: 'Microsoft'
      Language: 'C++'
       Version: '10.0'
      Location: 'C:\Program Files (x86)\Microsoft Visual Studio 10.0'
       Details: [1x1 mex.CompilerConfigurationDetails]
-------
If someone could enlight me a little bit, that would be great !
Thank you
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