.NET Framework 4.7.1 is the next version of the .NET Framework, which is going to ship with Windows 10 Fall Creators Update. Microsoft, in a blog post, announced the availability of 'Early Access Preview Build' of .NET Framework 4.7.1.

It's now a feature complete build and running under testing phase. If you are a Windows Insider, you can start validating your applications running on the latest version.

If you are using COM objects like Microsoft Excel or Microsoft PowerPoint, you may sometime notice that the COM instances are not releasing from the process list; even though you called Close(), Quit() on the application instance.

In case you faced the same issue, this post will guide you to find the Process ID (from the HWND) of that particular instance to take further action to release it.