System namespace won't load (VisualC++ 2005)

[Whooty]

Hello, im kind of new in using C++ and I have a question, I tried some tutorials and eventualy came to the part where the system namespace is used, but for some reason it won't work,

#include <iostream>
using namespace std;
using namespace System;
 
int main()
{
    std::cout << "Welcome to C++/CLI Programming. ";
    System::Console::WriteLine("C++/CLI is the new full-featured C++");
 
    return 0;
}
 

but it gives me the error that system namespace can't be found like this :

1>------ Build started: Project: test3, Configuration: Debug Win32 ------
1>Compiling...
1>test.cpp
1>d:\mijn documenten\visual studio 2005\projects\test3\test3\test.cpp(3) : error C2871: 'System' : a namespace with this name does not exist
1>d:\mijn documenten\visual studio 2005\projects\test3\test3\test.cpp(8) : error C2653: 'System' : is not a class or namespace name
1>d:\mijn documenten\visual studio 2005\projects\test3\test3\test.cpp(8) : error C3861: 'WriteLine': identifier not found
1>Build log was saved at "file://d:\Mijn documenten\Visual Studio 2005\Projects\test3\test3\Debug\BuildLog.htm"
1>test3 - 3 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
 

Can someone please explain me why it doesn't work, and how I can fix this ?

[Banfa]

It looks to me like you have not included the correct header file, iostream contains the std namespace but you have not included any other header files.

[Darryl]

Looks like you are trying to do C++/CLI or managed c++ in a Native C++ project.

[weaknessforcats]

Actually, the code is C#.

The headers are C++.