ServerDocument.RemoveCustomization Method

private static void RemoveAssembly(string documentPath)
{
    int runtimeVersion = 0;

    try
    {
        runtimeVersion = ServerDocument.GetCustomizationVersion(documentPath);

        // Make sure that this customization was created using the correct runtime.
        if (runtimeVersion != 3)
        {
            MessageBox.Show("This document does not have a Visual Studio Tools for " +
                "Office customization, or it has a customization that was created with " +
                "a version of the runtime that is incompatible with this version of the " +
                "ServerDocument class.");
            return;
        }

        ServerDocument.RemoveCustomization(documentPath);
        MessageBox.Show("The customization has been removed.");
    }
    catch (System.IO.FileNotFoundException)
    {
        System.Windows.Forms.MessageBox.Show("The specified document does not exist.");
    }
    catch (System.IO.IOException)
    {
        System.Windows.Forms.MessageBox.Show("The specified document is read-only.");
    }
    catch (UnknownCustomizationFileException)
    {
        System.Windows.Forms.MessageBox.Show("The specified document has a file " +
            "extension that is not supported by Visual Studio Tools for Office.");
    }
    catch (InvalidOperationException ex)
    {
        System.Windows.Forms.MessageBox.Show("The customization could not be removed.\n" +
            ex.Message);
    }
}