?
Solved

Quit Outlook

Posted on 2006-06-19
5
Medium Priority
?
1,102 Views
Last Modified: 2012-08-14
I have a need to programmatically quit Microsoft Outlook.  I am writing the code in VB.NET; but I would not expect that the basics of the technique itself would not be language specific.  

Assume that Microsoft Outlook is running.  The following code does not work:

      Private Sub QuitOutlook()
            Dim oApp As Outlook.Application = New Outlook.Application
            Dim oNS As Outlook.NameSpace = oApp.GetNamespace("mapi")
            oApp.Quit()
            oApp = Nothing
      End Sub

The result of the above code is that Outlook is hidden but "Outlook.EXE" still appears in the "Windows Task Manager".

I *don't* want to "kill the process".  Killing the Outlook process *does* remove "Outlook.EXE" from the Task Manager.  However, if the user happens to have an email message *unsaved* draft that they are currently working on, all work is lost.  I want the user to have the option of saving their changes.  The "QuitOutlook() code snippet I provided in the above paragraph *will* prompt the user with the "Do you want to save changes?" warning message before the window goes away -- but the problem with QuitOutloook() is that Outlook.exe doesn't *completely* go away.


The addition of “oApp.Session.Logoff()” does not help.
The addition of “oNS.Logoff()” does not help.

I have also noticed that QuitOutlook() only *sometimes* works when running within the Visual Studio VB.NET environment (debugger), but *never* works when I “Rebuild the Solution” and run the project exe.

I don’t know whether the following information will help anyone determine what the problem is    . . .
Even if I *manually* quit Outlook (select “Exit” from the Outlook’s “File” menu) after calling the QuitOutlook() code snippet, the “Outlook.EXE” still shows up in the Task Manager.  And each time I manually launch Outlook the “Mem Usage” item in the Task Manager for Outlook.EXE continues to grow.  This indicates some sort of memory leak.  In this case the only way to get rid of “Outlook.EXE” from the Task Manager is to kill the process either programmatically or from within the Task Manager.

Does anyone have any ideas?  It would seem to me that quitting an application would be easy!


0
Comment
Question by:richelieu7777
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
5 Comments
 
LVL 96

Accepted Solution

by:
Bob Learned earned 2000 total points
ID: 16934309
1) Add Imports line
 
   Imports System.Runtime.InteropServices

2) Add a marshal call to release resources

   oApp.Quit()
   Marshal.ReleaseComObject(oApp)

3) Force garbage collection

   GC.Collect()

Bob
0
 

Author Comment

by:richelieu7777
ID: 16934463
Do I put the Marshal.ReleaseComObject(oApp) and GC.Collect() right after the "oApp.Quit" or after the "oApp = Nothing"?  I just want to clarify.
0
 

Author Comment

by:richelieu7777
ID: 16934475
Or do I put the Marshal.ReleaseComObject(oApp) and GC.Collect() *in lieu of* the oApp = Nothing and delete "oApp = Nothing"
0
 
LVL 96

Expert Comment

by:Bob Learned
ID: 16934546
With Marshal.ReleaseComObject and garbage collection, you don't need to set the oApp to Nothing.  If you leave it in, it won't hurt anything, unless you put it before ReleaseComObject, or you will get an exception.

Bob
0
 

Expert Comment

by:epiphonedot
ID: 23755606
I'm building a COM dll in .NET that accesses Outlook for contacts and am trying to use this method to close Outlook, but it does not work. In testing, I took out all references except for an instance of the  Outlook Application. Is there something additional I need to know when using this method to close Outlook while using it in a class as opposed to an executable perhaps?
0

Featured Post

Cloud Training Guides

FREE GUIDES: In-depth and hand-crafted Linux, AWS, OpenStack, DevOps, Azure, and Cloud training guides created by Linux Academy instructors and the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

IP addresses can be stored in a database in any of several ways.  These ways may vary based on the volume of the data.  I was dealing with quite a large amount of data for user authentication purpose, and needed a way to minimize the storage.   …
The object model of .Net can be overwhelming at times – so overwhelming that quite trivial tasks often take hours of research. In this case, the task at hand was to populate the datagrid from SQL Server database in Visual Studio 2008 Windows applica…
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…
How to fix incompatible JVM issue while installing Eclipse While installing Eclipse in windows, got one error like above and unable to proceed with the installation. This video describes how to successfully install Eclipse. How to solve incompa…
Suggested Courses

800 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question