Problem
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When I close Visual Studio 2015 by pressing the close button on the IDE, the **devenv.exe** process keeps running in background between 3-5 minutes, after that time, it closes automatically, really strange. 

I discovered this issue because I was trying to install an extension automatedly using `DTE` (in the same way as I did for Visual Studio 2013 in the past without any problem), but when I call the method `dte.Quit()` it does not makes Visual Studio 2015 to close, the **devenv.exe** will keeps in background forever (until a manual process kill).

Question
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Someone could have an idea why I'm suffering this issue?.

Someone has the same issue?, someone found a way to fix it?.

It is an official bug?, is there an update or patch?. 

Or maybe in the worst case following new Microsoft "philosophy" it could be one of their spy mechanisms that keeps running even when the end-user tried to close the IDE?.

Research
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I have poor knowledges for problem resolutions like this like debugging a 3rd party app or reverse engineering knowledges but I did some basic things:

* Tried **procmon** from *SysInternals* but I didn't noticed any
strange call.
* Also I used a *Nirsoft* app called **WhatIsHang** which determines
any current applications that are hanging in the system then shows
some debug info of it, but **WhatIsHang** does not recognize any hang
of **devenv.exe**, so at least I know that **devenv.exe** is not
hanging, it seems to be just aparently "inactive" doing something
strange, and the process never exits by himself.

Environment Specifications
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**Windows Version**: 

Windows Spy 10, aka Windows 10 Professional (v10.0.10240) of 64-Bit, running on VMWare WorkStation.

**Visual Studio Version**: 

2015 Professional (v14.0.23107.0)

**3rd Party IDE extensions or any other sort of modification Installed?**:

No, it's a fresh install of the product.