The login form hosts webrowser control, it navigates to certain url, for example /login.php and if user is already logged-in, method UserLoggedIn inside form is invoked from html using ObjectForScripting. When UserLoggedIn was called, we were calling Close() to close form if the LoginForm was shown. Even though LoginForm was doing all this, we weren't always showing it. We were, showing it only if after X seconds UserLoggedIn() was not called(i.e user needs to login).For some reason, and thanks to MS for making us able to debug into .net sources, when we were calling Close, and the form was not Visible it was actually disposing the form and all it's children because IsHandleCreated was false. Now, the Close was called from UserLoggedIn(), which is an event fired by the browser control(the callstack shows ieframe.dll, mshtml.dll etc) , so the webbrowser object was being destoyed while being called from.The hacky way to resolve this, was to call Close, only if form was Visible. BTW, I don't know, why IsHandleCreated is false, if we don't show the form. I tried to reproduce it, by writing a sample that creates a form, which is not shown, but it's IsHandleCreated is true.
What kind of timer are you using? If the timer fire callback happens on another thread, and you are calling methods on the browser object, then you are opening yourself up random crash likelyhood. Try setting Control.CheckForIllegalCrossThreadCalls = true; in your Main() method beofre running the Application.Run(...) method and see if when it crashes, you get a more "on point" error message or the same.
Mshtml Dll Error Ie9 Download
This crash happens when jscript.dll is incorrectly registered. The ReduceMemoryPressureTask method expects it to be loaded and causes a null dereference otherwise. A fix is to run regsvr32 jscript.dll on the affected machine. You can check for the error by looking at the loaded module list to see if jscript.dll is missing or not. This can be done either programatically or through Process Explorer.
The exception code c0000005 usually means that is a memory problem. Maybe it has to do with 32 and 64 bits areas of your application getting confused.I would try to make your app run fully in 64, then fully 32, see what happens.Try running as admin, see if that changes anything.Also you should put try catches on the points where it makes sense, and rety whenever the error is found.Well those are suggestions, so try it out and see if you can get us more info.
Este problema se produce cuando un elemento HTML se quita dinámicamente de la vista representada actual y uno o más elementos HTML se desplazan a la vista directamente debajo de la ubicación del puntero. En este caso, el elemento situado debajo del puntero se enumera además de sus antecesores para identificar cualquier texto asociado o propiedades de información sobre herramientas. Si el proceso de enumeración intenta desreferenciar un elemento que se acaba de quitar de la vista actual, se produce el error.
MSHTML was designed as a software component to allow software developers to easily add web browsing functionality to their own applications. It presents a COM interface for accessing and editing web pages in any COM-supported environment, like C++ and .NET. For instance, a web browser control can be added to a C++ program and MSHTML can then be used to access the page currently displayed in the web browser and retrieve element values. Events from the web browser control can also be captured. MSHTML functionality becomes available by linking the file .mw-parser-output .monospacedfont-family:monospace,monospacemshtml.dll to the software project.
This update is now available for automatic download from Windows Update. If you installed the January Monthly Rollup (KB4534303), we strongly recommend that customers running Windows Server 2008 SP2 on x86 (32-bit) devices download and install this update (KB4534251). You can also download the update from the regular channels, such as Windows Server Update Services (WSUS) and the Microsoft Update Catalog.
Many applications in my system (Internet Explorer 8, Yahoo Messenger, Skype 10) are crashing and error details shows module name mshtml.dll. I checked the version of mshtml.dll in system32 folder. It is 8.0.6001.19170.
My Internet Explorer version is 8.0.6001.18702. I am not concerned about crash of IE, because I generally use Firefox, but how do I solve the crashes in other applications, which are due to mshtml.dll?
I am running Internet Explorer on Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, or Windows Server 2012 R2. Does this mitigate these vulnerabilities? Yes. By default, Internet Explorer on Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, and Windows Server 2012 R2 runs in a restricted mode that is known as Enhanced Security Configuration. Enhanced Security Configuration is a group of preconfigured settings in Internet Explorer that can reduce the likelihood of a user or administrator downloading and running specially crafted web content on a server. This is a mitigating factor for websites that you have not added to the Internet Explorer Trusted sites zone.
Server-side scripts such as Visual Basic scripts in Active Server Pages (ASP) run on a web server. Script errors that occur because of server-side script failures do not produce error messages in Internet Explorer, but they may create a webpage that does not display or work correctly. The troubleshooting information in this article applies to client-side script errors. Contact the administrator of the web server if you suspect that a problem affects a server-side script.
These methods listed in this article may help you troubleshoot the script errors that are caused by files or settings on your computer. For quick visual instructions about how to troubleshoot script errors in Internet Explorer, watch this video:
If the only sign of this problem is the error message, and the websites are working, you can probably ignore the error. Also, if the problem occurs on one or two webpages, the problem may be caused by those pages. If you decide to ignore the errors, you can disable script debugging. To do it, select the Disable script debugging (Internet Explorer) checkbox in Internet Options > Advanced > Browsing settings.
If the script error doesn't occur when you view the webpage through another user account, in another browser, or on another computer, the problem may be caused by files or settings on your computer. In this situation, follow the methods in this article to resolve this problem:
If an antivirus program interprets a script as a virus, and prevents it from running, a script error may occur. To prevent this issue, make sure that the antivirus program isn't scanning the Temporary Internet Files folder or the Downloaded Program Files folder.
If you experience a video display problem, the Smooth Scrolling feature may cause a script to be timed incorrectly. It can generate a script error. To turn off the Smooth Scrolling feature in Internet Explorer, follow these steps:
In some cases, an updated version of the driver may not be available through Windows Update. You may have to visit the manufacturer's website to locate and download the latest printer driver for your printer.
Microsoft has released Cumulative Security Updates for Internet Explorer which addresses various vulnerabilities found in Internet Explorer 9 (IE 9), Internet Explorer 10 (IE 10) and Internet Explorer 11 (IE 11). The most severe of the vulnerabilities could allow remote code execution. QID Detection Logic (Authenticated):Operating Systems: Windows Server 2008, Windows Server 2008 R2, Windows 7, Windows Embedded 8 Standard, Windows 8.1, Windows RT 8.1, Windows 10, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016,Windows Server 2019. This QID checks for the file version of %windir%\System32\mshtml.dllThe following versions of mshtml.dll with their corresponding KBs are verified:1.KB4471318 - 11.0.9600.192042.KB4470199 - 11.0.9600.19204,10.0.9200.22620,11.0.9600.19204,9.0.8112.21291,3.KB4471320 - 11.0.9600.192044.KB4471321 - 11.0.14393.26655.KB4471323 - 11.0.10240.180636.KB4471327 - 11.0.15063.15067.KB4471329 - 11.0.16299.8468.KB4471324 - 11.0.17134.4719.KB4471332 - 11.0.17763.19410.KB4471330 - 10.0.9200.2262011.KB4471325 - 9.0.8112.21291ConsequenceSuccessful exploitation of the vulnerability can lead to arbitrary code execution within the context of the current user.SolutionFor more information, refer to the Security Update Guide.Patches:The following are links for downloading patches to fix these vulnerabilities:Microsoft Security Update Guide
This security update contains the following KBs:KB2597975KB2965312KB4011207KB4011680KB4092472KB4461465KB4461481KB4461521KB4461532KB4461541KB4461542KB4461544KB4461549KB4461551KB4461556KB4461558KB4461559KB4461565KB4461566KB4461569KB4461570KB4461576KB4461577KB4461580QID Detection Logic:This authenticated QID checks the file versions from above Microsoft KB article with the versions on affected office system.ConsequenceSuccessful exploitation allows an attacker to execute arbitrary code.SolutionRefer to Microsoft Security Guidance for more details pertaining to this vulnerability.Patches:The following are links for downloading patches to fix these vulnerabilities:Microsoft Office and Microsoft Office Services and Web Apps Security Update December 2018
The KB Articles associated with the update:KB4471323KB4471321KB4471327KB4471329KB4471324KB4471332The QID Detection Logic (Authenticated):This QID reviews the file version of %windir%\System32\edgehtml.dllThe patch version is 11.0.10240.18063 (KB4471323) The patch version is 11.0.14393.2636 (KB4471321) The patch version is 11.0.15063.1478 (KB4471327) The patch version is 11.0.16299.820 (KB4471329) The patch version is 11.0.17134.471 (KB4471324) The patch version is 11.0.17763.168 (KB4471332)ConsequenceDepending on the vulnerability being exploited, a remote attacker could exploit these vulnerabilities to bypass security restrictions, gain access to sensitive data or execute arbitrary code on the targeted system.SolutionPlease refer to the Security Update Guide for more information pertaining to these vulnerabilities.Patches:The following are links for downloading patches to fix these vulnerabilities:Microsoft Security Update Guide Windows(Edge) 2ff7e9595c
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