This article provides information to help you diagnose and resolve issues that occur when you receive an unrecoverable error (fault or exception) message when you use Windows-based Internet Explorer.
Unrecoverable errors are also known as user-mode faults or exceptions. Programs such as Internet Explorer run on your computer in what is known as user-mode (or Ring3). Processes that run in user-mode do so in their virtual address spaces and do not have direct access to hardware or memory that was not allocated to them. Because user-mode processes are effectively isolated from the system and other user-mode processes, they do not interfere with these resources. Therefore, they do not compromise the integrity of your computer. For example, if a process tries to read or write to a memory location that has not been allocated to it, the result is an unrecoverable error (in this case, an exception). When these unrecoverable errors occur, you must close the affected program or process to maintain your computer’s integrity.
Note that most programs interact with other user-mode processes. You can extend some programs by using add-on features that share their memory space. In the case of Internet Explorer, ActiveX Controls, Browser Helper Objects, tool bands, and other components can add custom functionality to the browser, such as additional toolbars, wallpaper or banner ads. These components run in the same memory space as the browser, and may generate faults or exceptions on Internet Explorer or one of its components. Like most programs, Internet Explorer also interacts with other parts of your computer. For example, you use your display driver, display hardware, and installed fonts to display Web pages. You use your printer driver and hardware to print Web pages. Other programs may also interact with Internet Explorer. These interactions with other software or services can also cause unrecoverable errors in Internet Explorer.
Troubleshooting Unrecoverable Errors
To troubleshoot unrecoverable errors in Internet Explorer, follow these steps. After you perform each step, stop and test to see if the issue is resolved. If not, continue troubleshooting with the next step.
Use the Microsoft Internet Explorer Error Reporting tool.To do so, click Send Error Report when you are prompted tosend the error report to Microsoft. If a fix or workaround is available, clickthe More information link after you send the error report toMicrosoft to obtain the fix or information about how to work around theissue.
By default, the Internet Explorer Error Reporting tool isinstalled with Internet Explorer 5.5 Service Pack 2 (SP2) and later and WindowsXP and later. If you are running Internet Explorer 5.5 Service Pack 1 (SP1) orearlier on Windows 98, Windows Millennium Edition, Windows NT 4.0, or Windows2000, you can add the Internet Explorer Error Reporting tool from the WindowsUpdate Web site or by upgrading to Internet Explorer 5.5 SP2 orlater.For more information about the Internet Explorer Error Reporting Tool, click the following article number to view the article in the Microsoft Knowledge Base:
276550 Description and availability: Internet Explorer error reporting
For more information about how to obtain the latest Internet Explorer 6 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
328548 How to obtain the latest Internet Explorer 6 service pack
For additional information about how to obtain the latest Internet Explorer 5.5 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
267954 How to obtain the latest Internet Explorer 5.01 service pack
Click the click here link on the InternetExplorer Error Reporting dialog to view the error details. You then see errorsignature information similar to the following:
If the module listed forModName is not a Windows orInternet Explorer file, you may be able to isolate the issue by removing ordisabling any programs, services, or drivers that are associated with theaffected module. To do so, locate Module.dll on yourhard disk, right-click the file, click Properties, on theVersion tab, and then view the Company box toverify that the file is a Microsoft file. If not, the Companyand Product Version boxes may indicate which program, service,or driver the file is associated with. If not, try searching the Internet forinformation about the file. When you determine which program, service, ordriver the file is associated with, remove the program, service, or driver tosee if the issue is resolved. For example, to remove a program or service, usethe Add or Remove Programs tool in Control Panel, or contact the manufacturerof the program or service for information about how to remove it.
If you have the Internet Explorer Repair Tool, use it tolocate Internet Explorer files that are out of date or incorrectly registered.
Disable third-party browser extensions.For more information about how to disable third-party browser extensions, click the following article number to view the article in the Microsoft Knowledge Base:
298931 How to Disable third-party tool bands and browser helper objects
Incompatible or conflicting software that is running at thesame time as Internet Explorer may cause some faults. To determine if this iscausing the issue, perform a "clean boot" of Windows. A clean boot helps you toisolate the issue by temporarily eliminating items in your computerconfiguration that do not help to start Windows and InternetExplorer.
To perform a clean boot, view the following articles in theMicrosoft Knowledge Base:
If the error messages do not occur in a clean bootconfiguration, a conflict between Internet Explorer and some of your installedprograms, drivers, or services is causing the issue. In this case, add itemsback to your configuration one-by-one or in groups until the issue returns.When you have isolated the conflicting program or service, contact themanufacturer for information about known issues or possible updates.
If the fault only occurs when you visit certain Web sites,then the issue may be related to damaged Internet Explorer favorites, cookies,history (including AutoComplete), temporary Internet files, or ActiveXControls. To resolve this issue, delete each of these items. To do so:
Export your cookies and favorites by using the Import/Export Wizard in Internet Explorer. For more information about using the Import/Export Wizard, click the following article number to view the article in the Microsoft Knowledge Base:
221523 Description of the Import/Export Wizard that is included with Internet Explorer 5.0 or later
Note: If this step does not resolve the issue, you can now use the Import/Export Wizard to restore your favorites (from Bookmark.htm) and cookies (from Cookies.txt).
Delete your cookies. For more information about how to delete cookies, click the following article number to view the article in the Microsoft Knowledge Base:
If the issue occurs when you click an item in Favorites, delete your favorites.
Delete all the Temporary Internet Files. To do so:
Start Internet Explorer.
On the Tools menu, click Internet Options.
On the General tab, click Delete Files, and then click to select the Delete all offline content check box.
If this does not resolve the issue, move your Temporary Internet Files folder to another location, delete the old folder, and then (if you want to) move your Temporary Internet Files folder back to the original location. For more information about this procedure, click the following article number to view the article in the Microsoft Knowledge Base:
301057 Temporary Internet files use more disk space than specified
Remove all ActiveX controls. For more information about how to remove ActiveX controls, click the following article number to view the article in the Microsoft Knowledge Base:
Reinstall Internet Explorer. If you are using the versionof Internet Explorer that was included with your operating system or anoperating system service pack, repair or reinstall your operating system orreinstall your operating system service pack. For more information about how to determine which version of Internet Explorer you are using, click the following article number to view the article in the Microsoft Knowledge Base:
164539 How to determine which version of Internet Explorer is installed
Unrecoverable Error Messages
Unrecoverable errors in Internet Explorer generate different error messages depending on whether Internet Explorer Error Reporting is installed and enabled.
Windows 98 Without Internet Explorer Error Reporting
This program has performed an illegal operation and will be shut down. If the issue persists, contact the program vendor.
Windows Millennium Edition Without Internet Explorer Error Reporting
Iexplore has caused an error in module. Iexplore will now close. If you continue experiencing problems, try restarting your computer.
Windows NT 4.0 and Windows 2000 Without Internet Explorer Error Reporting
An application error has occurred and an application error log is being generated.