Hi,
I'm not sure what Group the question belongs to

I'm building a Windows.Forms application, having a Mappoint control.
At the time a map file is opened with OpenMap I'm getting the error (in the
subject).
the error code (as COM Exception) : 800a400b

It used to work fine in MP-2002.
I can't open any ptm file - even a file provided in MP/Samples

My build details are as follows:

As part of the installation I've fot MappointControl.ocx - version
11.00.18.1900
and registered it (checked the registry - both CLSID and TLB entries are
there, correct version and Server  paths)

I ran AxImp, building MapPint.dll and AxMapPoint.dll
With these files in my Projest's References, I can build successfully
(without those References - was getting an error, complainig unresolved
namespaces)

Both DLLs were copied to the destination folder of the build

What is a possible cause of this behavior?
=====================================================

FYI: the code I'm executing is as follows:

         private AxMapPoint.AxMappointControl m_mapCtrl;
         private Map m_map;

...............................
... In the Constructor (of my UserControl-derived class)
       
           this.m_mapCtrl = new AxMapPoint.AxMappointControl();
           ((System.ComponentModel.ISupportI
nitialize)(this.m_mapCtrl)).BeginInit();
           this.SuspendLayout();
            this.m_mapCtrl.Enabled = true;
           this.m_mapCtrl.Location = new System.Drawing.Point(0, 0);
           this.m_mapCtrl.Name = "m_mapCtrl";
            this.m_mapCtrl.Size = new System.Drawing.Size(800, 376);
           this.m_mapCtrl.TabIndex = 0;

           this.Controls.Add(this.m_mapCtrl);
           
((System.ComponentModel.ISupportInitialize)(this.m_mapCtrl)).EndInit();
           this.ResumeLayout(false);

... in the _Load
                   m_map = m_mapCtrl.OpenMap("C:\\Program Files\\Microsoft
MapPoint\\Samples\\Typical US Marketing Areas by 3 Digit ZIP Code.ptm");

and this line throws an exception

Message: The file you choose is not a MapPoint 2004 2004 file
StackTrace    "
at MapPoint.IMappointCtrl.OpenMap(String FileName)\r\n  
at AxMapPoint.AxMappointControl.OpenMap(String fileName) in c:\\Program
Files\\Microsoft MapPoint\\axmappoint.cs:line 299\r\n  
at MyMap.RMMapPoint.RMMapPoint_Load(Object sender, EventArgs e) in
C:\\_RM_Root\\RM_Source\\MyMap\\Form1.cs:line 128"    s

this line is (as I used /source swicth, just to have the code)

           MapPoint.Map returnValue =
((MapPoint.Map)(this.ocx.OpenMap(fileName)));

P.S. a call to Newmap has exactly same effect