Correct spelling: public __gc class Vektor {...

It'd really help if you cut and pasted your code, because your doesn't
even compile. It's full of syntax errors, misplaced { and } symbols, etc.

Here's something that's similar to your code, and it works without an error:

#include "stdafx.h"

#using <mscorlib.dll>

using namespace System;

public __gc class Vektor
{

private:
  Double y, x, z;

public:
  Vektor()
   : y(0), x(0), z(0)
  {
  }

Vektor(Double y1, Double x1, Double z1)
 : y(y1), x(x1), z(z1)
{
}

__property Double get_Y() { return y; }
__property void set_Y(Double a) { y = a; }
__property Double get_X() { return x; }
__property void set_X(Double b) { x = b; }
__property Double get_Z() { return z; }
__property void set_Z(Double c) { z = c; }

};

public __gc class Access
{
public:
  static Vektor* get_Vector(String* e, String* p)
  {
    return new Vektor(1, 2, 3);
  }
};

int _tmain()
{
  Vektor* obj = Access::get_Vector(S"", S"");
  Int16 kind = Convert::ToInt16(obj->get_Y());
  return 0;
}

Tom