How to close outlook after automating it in c#

Question

I am creating a program which converts Msg outlook file into pdf. What I did was export the Msg file into Html then convert the Html output to pdf. This is my code:

Answer 1

The issue is that the outlook com object is holding on to references and stopping the app from closing. Use the following function and pass your "app" object to it:

private void ReleaseObj(object obj)
{
    try 
    {
        System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
    }
    catch {}
    finally 
    {
        obj = null;
    }
}

See https://blogs.msdn.microsoft.com/deva/2010/01/07/best-practices-how-to-quit-outlook-application-after-automation-from-visual-studio-net-client/