Vector gives compiler errors?

[MrDoomMaster]

Consider the following code:

//--Header-Files----------------------------------
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include    <vector>
//------------------------------------------------


//--Global-Variables------------------------------
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
double          CoordinateMultiplierX       = 0;        //Size of X axis increment in Pixels
double          CoordinateMultiplierY       = 0;        //Size of Y axis increment in pixels
int             MapX                        = 0;        //Size of Client Rectangle X
int             MapY                        = 0;        //Size of Client Rectangle Y
//------------------------------------------------


//--Structures------------------------------------
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
struct Points {
    double x;
    double y;
    bool Invisible;                                 //TRUE = Move to, FALSE = Line to
    Points(double xx, double yy, bool i) {
        x = xx * CoordinateMultiplierX;
        y = yy * CoordinateMultiplierY;
        Invisible = i; } };
//------------------------------------------------


//--Vector-Declarations---------------------------
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vector<Points>  MapPoints                   ;               //Contains points to draw Map Lines
//------------------------------------------------

Here are the errors my compiler gives. I'm using Visual Studio .NET 2003:

error C2143: syntax error : missing ';' before '<'
error C2501: 'vector' : missing storage-class or type specifiers
error C2065: 'MapPoints' : undeclared identifier

Can someone please tell me why these errors occur? I can't seem to figure it out