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Can I hide the compatibility notification when using google maps in webbrowser control in .Net Desktop Application

I made a program that use the new google maps in c# but when opened, I get a notification concerning the compatibility of IE. (See image)
Any idea to fix it?

Please see this answer
In general, WebBrowser control always runs in compatibility mode and the only way to disable it is to edit registry.
Another option is to use other control (not based on IE), like http://sourceforge.net/projects/webkitdotnet/

Script Error in webBrowser control WPF

When am work on webBrowser control using wpf Getting error like "script error" even i pasted screen shot here and even some jquery UI and css not working

I faced this problem too. I need to create browser application which the web has lot of Jquery, JSON etc and webbrowser control does't work as expected (I'm using Windows 10 and Visual Studio 2015)
As solution, I use cefsharp.github.io which allow me to embed a full-featured standards-complaint web browser into C# or VB.NET project solution without hacking windows registry key. It based on Chromium Embedded Framework. It work like a charm!
Just grab nuget packages and create ChromiumWebBrowser class and you are ready to use it.

You have to change your WebBrowser rendering engine, by default it uses the oldest one.
In this link Microsoft describes how you can do it:
http://msdn.microsoft.com/en-us/library/ie/ee330730%28v=vs.85%29.aspx
And you can follow this good answer too.
Will the IE9 WebBrowser Control Support all of IE9's features, including SVG?
Pay attention that if you are running a 32 bit app on a 64bit system you must set this key instead
[HKLM\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION]
I tried the site that fails in your screenshot and works well with this registry change from a WebBrowser.

Take screenshot of div in InternetExplorer

I am using mshtml.InternetExplorer object within my winforms application to browse a web application. Somehow I can't use webbrowser in my solution. Now I need to capture screenshot of a div element inside this web application. I see lots of solutions doing similar functionality using webbrowser's drawtobitmap method but none is using mshtml.InternetExplorer.
Is there way to achieve this functionality ? Is there some way that I can type cast InternetExplorer object into webbrowser?

You should be able to capture the desired part of the main IE window using PrintWindow Windows API, as explained here. You can get the handle of the window by calling IWebBrowser2::HWND on the IE object. Some other methods could also help to make this happen:
IWebBrowser2::ClientToWindow
IHTMLElement::scrollIntoView
IHTMLElement2::getBoundingClientRect

Creating web browsers

From what I know, browsers that are based on WebKit have been built around the open source webkit project after they downloaded it and built it, so if one were to build a browser around the Trident rendering engine/Internet Explorer's rendering engine, would you-
Download Trident from somewhere, build it and add it to your project, or;
Add a System.Windows.Forms.WebBrowser Control to your Form and use that?

I believe that the System.Windows.Forms.WebBrowser control is indeed based on IE's Trident engine. however it is highly limited in what it can and can't do, by default.
You can however modify application specific settings for your browser to enable features through the control.
An example of this is that the WebBrowser control, by default, renders using the lowest setting supported by the version of IE installed on the machine, so for example if you have IE9 installed, the WebBrowser control will render in IE7 compatibility mode, but you can make it render using IE9 standards based mode if you change/add some settings to the registry.
Take a look at implementing/modifying Internet Feature Controls here:
http://msdn.microsoft.com/en-us/library/ee330720%28v=vs.85%29.aspx
On another note, I think you'd be hard pushed to find a download for Trident. Being a Microsoft product, my guess is that it's a closely guarded, closed source, secret! - However of you do find a download for it, I'd be very interested to know more! :-)

Attach Watin to WebBrowser (WPF)

I've scoured the internet (including answers from this site) but nothing appears to work for me. Does anyone know the correct approach to attach WatiN to a WebBrowser instance (Windows Presentation Forms version)?
Most of the answers I've read tell me about 'ActiveXInstance', which is not visible in the WPF version of WebBrowser. I've tried exposing the IWebBrowser 2 interface from the WebBrowser documentation (http://msdn.microsoft.com/en-us/library/cc491073%28v=VS.90%29.aspx) but after much reworking of the code structure to get it to compile, a simple WatiN goto(URL statement simply ends up timing out.
As a last resort I've tried
WatiN.Core.Settings.AutoStartDialogWatcher = false;
var browser = new IE(wbrowser);
On the loadcompleted event (as the browser instance will result in null if I place it in the MainWindow() constructor method), but that brings up an Argument Exception with the message "iwebBrowser2 needs to implement shdocvw.IWebBrowser2". Unfortunately I've no idea how to resolve this.

It's likely that you'll want to attach by window handle:
var ie = IE.AttachToIE(Find.By("hwnd", containerHwnd);

In the WatiN_IE_ExtensionMethods.cs API I wrote for O2, I was able to get it to work quite nicely with the normal WinForms webbrowser (inside another WinForm control or an WPF control).
Since you can use WinForm controls inside WPF (and that is exactly what .NET 3.5 is doing with the WPF WebBrowser since it is not a native WPF control), here is an example that: does exactly that Using WatiN to inside WPF.
This video shows an O2 script that uses this technique: http://www.youtube.com/watch?v=YsVX5-nGHWI
Note that I wrote a bunch of Extension methods to make WatiN easier to consume:
var ie = winFormsPanel.add_IE();
ie.open("http://www.google.com");
ie.link("Videos").flash().click();
ie.field("q").value("OWASP O2 Platform").flash();
ie.button("Search Videos").flash().click();
ie.link("O2 Platform - XSS PoC builder.avi").scrollIntoView().flash().click();