Import RTF with images in xbap

I need to import a RTF document into a FlowDocument for further parsing.. But I have a very strange problem:

public string ConvertRTF(byte[] bytes)
{
    if (bytes == null)
    {
        throw new ArgumentNullException();
    }

    FlowDocument document = new FlowDocument();

    // open the file for reading
    using (MemoryStream stream = new MemoryStream(bytes, true))
    {
        // create a TextRange around the entire document
        TextRange documentTextRange = new TextRange(document.ContentStart, document.ContentEnd);
        if (documentTextRange.CanLoad(DataFormats.Rtf))
            documentTextRange.Load(stream, DataFormats.Rtf);
    }

    return XamlWriter.Save(document);

}

I have tested this method in three different projects:

Wpf stand alone app: gives me no problems what so ever, but alas, I cannot use this kind of application.
Console app: it often works, but it breaks on the documents with image from time to time, and I cannot get my finger around when it breaks and why... The error I am receiving is on the Load method of TextRange: "Unrecognized structure in data format 'Rich Text Format'. Parameter name: stream"
Xbap application: Does not even get past the CanLoad method... :( So gives me jack whathisname as a result...

The stange thing is, that when I test it with the console app it works without errors in the following construction:

[STAThread]
static void Main(string[] args)
{
    OpenFileDialog dialog = new OpenFileDialog
    {
        Filter = "import files (*.rtf)|*.rtf"
    };

    if (dialog.ShowDialog() != DialogResult.OK)
        return;


    byte[] data;
    using (Stream filestream = dialog.OpenFile())
    {
        int offset = 0;
        data = new byte[filestream.Length];
        int remaining = data.Length;
        while (remaining > 0)
        {
            int read = filestream.Read(data, offset, remaining);
            if (read <= 0)
                throw new EndOfStreamException
                    (String.Format("End of stream reached with {0} bytes left to read", remaining));
            remaining -= read;
            offset += read;
        }
    }

    FlowDocument document = new FlowDocument();

    using (MemoryStream stream = new MemoryStream(data))
    {
        // create a TextRange around the entire document
        TextRange documentTextRange = new TextRange(document.ContentStart, document.ContentEnd);
        documentTextRange.Load(stream, DataFormats.Rtf);
    }

    Console.WriteLine("test ok");
}

Which just make me clueless, because that is exactly what I am doing but then phased in two steps... first retrieve the bits, then use the memorystream to make it into a RTF... :(

Can it be that there might be a conflict in some dll version somehow? We are using 3.5 SP1 for our project...

Can someone help me find a solution for one of last two posibilities mentioned above?

Thanks

ansaurus

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Import RTF with images in xbap

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