Outlook Tips: Multiple Outlook Instances

Microsoft Outlook is still one of the most popular desktop email clients on the Windows operating system. It is especially widely used in work environments and seen as one of the most complete email clients out there. Outlook is usually configured to connect to a Microsoft Exchange Server in work environments.
One of the main limitations of Microsoft Outlook is that it is not possible to run multiple Outlook instances that connect to different Microsoft Exchange Servers. It is possible to run multiple Outlook profiles on the same computer system but it is not possible to connect to different Exchange Servers.
Enter Extra Outlook, a lightweight freeware software application that makes it possible to run multiple Outlook instances on the same computer system. You can find a detailed explanation of the workings of that application at the REblog. A general description would be that Extra Outlook will intercept Outlooks exit process when starting a second instance of the email client which allows the user to select a different profile (and thus Exchange Server) during startup.
Extra Outlook is a command line tool:
ExtraOutlook.exe "C:\Program Files\Microsoft Office\Office12\OUTLOOK.EXE"
You can also create shortcuts on the desktop that make use of this program to launch additional Outlook instances comfortably. Extra Outlook is compatible with Microsoft Outlook 2003 and Microsoft Outlook 2007.
Update: Extra Outlook is no longer available on the server the project has been hosted on. We have uploaded the latest available version of the program to our own servers. You can download the program with a click no the following link: [Download not found]
We have tested the download with up to date antivirus software and it tested clean. Still, we suggest you test it again on your system before you run the program for the first time. The latest version of Extra Download is version 1.3.
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You said that Outlook isn’t your main email client, so which is your main one?
I think its thunderbird
It is Mozilla Thunderbird.
Awesome! This actually solved my problem… what a stupid bug.
If this is the same bug that I’ve encountered, there may be another fix: (1) hover over open Outlook item in Taskbar, cursor up to hover over Outlook window item, and right-click; (2) this should give you Restore / Move / Size / Minimize / Maximize — choose Move or Size; (3) use your cursor keys, going arbitrarily N/S/E/W, to try to move or size the Outlook window back into view. Basically, the app behaves as though it were open in a 0x0 window, or at a location that’s offscreen, and this will frequently work to resize and/or move the window. Don’t forget to close while resized/moved, so that Outlook remembers the size/position for next time.
THANK YOU Claude!!! I could get the main window to launch but could not get any other message window to show on the desktop. You are my hero!!!!
Solved my issue! 6 years later and this is still problem…
Fantastic. Thank you. Size did the trick.
This solved my Outlook problem, too. Thank you. :)
Thank you so much, this started happening to me today and was causing big problems. You are a life saver, I hope I can help you in some way some day.
You are a god – thank you!
thanks a lot…. work like charm.. :-)
Yah…thanks Claude. I’ve been having the same problem and tried all the suggestions…your solution was the answer. It had resized itself to a 0/0 box. Cheers
Excellent post. This had me baffled even trying to accurately describe the problem. This fixed it for me.
Thank you
Thanks a lot for the article. Don’t know why it happenend, don’t know how it got fixed, but it was really annoying and now it works :-)
Thanks a lot. I was facing this issue from past 3 week. I tried everything but no resolution. The issue was happening intermittently and mainly when I was changing the display of screen ( as i use 2 monitors). The only option i had was to do system restore. But thanks to you.
I’ve been tried to sole this problem for 12hours. Your comment about changing the display of screen helped me a lot!! Thanks!!
Thank you…don’t know why this happened but your instructions helped me fix it. Running Windows 10 and office pro 2007
Great tip! Thanks!
Worked for me, too – thank you!!!
It’s Worked for me, too
thank you very much!
I had a similar issue with Outlook 2013 on Windows 10 and this helped me to fix it. Thank you very much!
Thank you so much. Solved!
Considering you published this in 2012, incredible not been debugged by Microsoft.
Thank you again. M
This problem was faced by only one user logging to TS 2008 r2 using outlook 2010.The issue was resolved.
Thanks.
Great tip. Thank you!!!! If it helps, I had to use the Control Key and the arrow keys at the same time to bring my window back into view. Worked like a charm.
Thank you, this worked !!!!
Man, you are a fucking god. Thanks a lot, what an annoying bug!!
Awesome, this post solved the issue. Many thanks!