How to make Outlook 2010 minimize when I try to close it?

I wrote a free plugin to minimize outlook instead of closing it. I only have outlook 2007 (works on 2010/2013 version as well) so that is all it has been tested with.

Anyone who wants to contribute to the project is free to do so

https://sourceforge.net/projects/keepoutlook/

Installation

1. Install Microsoft Visual C++ 2010 SP1 Redistributable Package 32-bit and 64-bit (both required for x64 Windows)
2. Download KeepOutlookRunning.dll
3. Start Outlook as Administrator (right click on it in Start Menu)
4. Go to File -> Options -> Add-Ins
5. At the bottom: Manage [COM-Addins] press [Go...]
6. [Add...] the KeepOutlookRunning.dll file downloaded in step 2
7. Restart Outlook as a normal user

With "Hide when minimized" active (not hard to find, just right click on the "O" icon in the tray)

1. Open outlook

2. Minimize outlook

3. Open outlook again (not from the tray, just do it the way you did it in step 1)

You can close that window with alt+f4 or the X or whatever and outlook will still be in the tray.