error while displaying modal dialog box in server ; Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the...

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C#

ASP.NET

I am using the following code

static public class TopMostMessageBox
{
    static public DialogResult Show(string message)
    {
        return Show(message, string.Empty, MessageBoxButtons.OK);
    }
    static public DialogResult Show(string message, string title)
    {
        return Show(message, title, MessageBoxButtons.OK);
    }
    static public DialogResult Show(string message, string title, 
        MessageBoxButtons buttons)
    {
        // Create a host form that is a TopMost window which will be the 
        // parent of the MessageBox.
        Form topmostForm = new Form();
        // We do not want anyone to see this window so position it off the 
        // visible screen and make it as small as possible
        topmostForm.Size = new System.Drawing.Size(1, 1);
        topmostForm.StartPosition = FormStartPosition.Manual;
        System.Drawing.Rectangle rect = SystemInformation.VirtualScreen;
        topmostForm.Location = new System.Drawing.Point(rect.Bottom + 10, 
            rect.Right + 10);
        topmostForm.Show();
        // Make this form the active form and make it TopMost
        topmostForm.Focus();
        topmostForm.BringToFront();
        topmostForm.TopMost = true;
        // Finally show the MessageBox with the form just created as its owner
        DialogResult result = MessageBox.Show(topmostForm, message, title, 
            buttons);
        topmostForm.Dispose(); // clean it up all the way
        return result;
    }
}

this is working in my local system and after deploying in Windows 2008 (64Bit) server with sql server 2008 and framework 3.5 the following error is coming

Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.