Updated Wiki: ReadESRIPrjFiles

Imports DotSpatial.Projections

'Sample code that will conduct a reprojection by reading in the ESRI.prj filePrivateSub btnProjection_Click(sender AsObject, e As EventArgs)
       'declares a new ProjectionInfo for the startind and ending coordinate systems'sets the start GCS to WGS_1984Dim pStart As ProjectionInfo = KnownCoordinateSystems.Geographic.World.WGS1984
        'reads the end coordinate system from the ESRI .prj file
Dim pESRIEnd As ProjectionInfo = ProjectionInfo.Open("C:\Program Files\ArcGIS\Coordinate Systems\Projected Coordinate Systems\UTM\WGS 1984\WGS 1984 UTM Zone 1N.prj")
        'declares the point(s) that will be reprojectedDim xy AsDouble() = NewDouble(1) {}
        Dim z AsDouble() = NewDouble(0) {}
        'calls the reprojection function
        Reproject.ReprojectPoints(xy, z, pStart, pESRIEnd, 0, 1)
        MessageBox.Show("Points have been projected successfully.")
EndSub

using DotSpatial.Projections;

        //Sample code that will conduct a reprojection by reading in the ESRI.prj fileprivatevoid btnProjection_Click(object sender, EventArgs e)
        {
            //declares a new ProjectionInfo for the startind and ending coordinate systems//sets the start GCS to WGS_1984
            ProjectionInfo pStart = KnownCoordinateSystems.Geographic.World.WGS1984;
            ProjectionInfo pESRIEnd = ProjectionInfo.Open("C:\\Program Files\\ArcGIS\\Coordinate Systems\\Projected Coordinate Systems\\UTM\\WGS 1984\\WGS 1984 UTM Zone 1N.prj"); 
            //declares the point(s) that will be reprojected
double[] xy = newdouble[2]; 
double[] z = newdouble[1]; 
            //calls the reprojection function
            Reproject.ReprojectPoints(xy, z, pStart, pESRIEnd, 0, 1); 
            MessageBox.Show("Points have been projected successfully."); 
        }