System TipThis article applies to a different operating system than the one you are using. Article content that may not be relevant to you is disabled.
This article was previously published under Q310049
If you are a Small Business customer, find additional troubleshooting and learning resources at the Support for Small Business
(http://smallbusiness.support.microsoft.com)
site.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756
(http://support.microsoft.com/kb/322756/
)
How to back up and restore the registry in Windows
To fix this problem automatically, click the Fix this problem link. Then click Run in the File Download dialog box, and follow the steps in this wizard.
This wizard may be in English only, but the automatic fix also works for other language versions of Windows.
If you are not on the computer that has the problem, you can save the automatic fix to a flash drive or to a CD, and then you can run it on the computer that has the problem.
You may be able to resolve the issue by resetting Internet Explorer web settings. To do this, follow the steps that correspond to your version of Internet Explorer.
Internet Explorer 9
Start Internet Explorer.
Click the Tools icon, and then click Internet Options.
Click the Advanced tab, and then click Reset.
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In the Reset Internet Explorer Settings window, click to select the Delete personal settings check box, and then click Reset.
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Click Close when it is completed.
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Restart Internet Explorer.
Click the Tools icon, and then click Internet Options.
Click the Programs tab, and then click Set programs.
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Click Set your default programs.
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In the Programs list, click Microsoft Outlook, and then click Set this program as default.
Click OK, and then close the Default Programs dialog box.
In the Internet Options dialog box, click the Programs tab, and then click Make default under Default web browser.
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Click OK.
Internet Explorer 8 and Internet Explorer 7
Start Internet Explorer.
On the Tools menu, click Internet Options.
Click the Advanced tab, and then click Reset.
Click the Programs tab, and then click Set programs.
Click Set Default Programs.
Click to select Microsoft Outlook, and then click Set this program as default.
Click OK, and then close the Default Programs dialog box.
In the Internet Options dialog box, click the Programs tab, and then click Make default under Default web browser.
Click OK.
Internet Explorer 6
Start Internet Explorer.
On the Tools menu, click Internet Options.
Click the Programs tab, and then click the Reset Web Settings button.
Under Internet programs, make sure that the correct email program is selected.
Click to select the Internet Explorer should check to see whether it is the default browser check box.
Click Apply, and then click OK.
Note You may receive the following message when Internet Explorer starts:
Internet Explorer is not currently your default browser. Would you like to make it your default browser?
This section is intended for advanced computer users. For help with advanced troubleshooting, ask your system administrator or contact Microsoft Support at:
On the File or Registry menu (depending on your operating system), click Export.
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Note the location where the file will be saved. The registry file can be saved directly to the hard disk or floppy disk.
Type a unique file name, and then click Save.
Exit Registry Editor.
Import the registry key
Copy the exported registry key to the desktop on the problem computer.
Double-click the .reg file.
You receive the following message:
Are you sure you want to add the information in drive: location file was copied to\file name.reg to the registry?
Click Yes, and then click OK.
Verify that the String (Default) value of the "HKEY_CLASSES_ROOT \.html" key is "htmlfile"
Click Start, and then click Run.
In the Open box, type regedit, and then click OK.
Locate, and then click the following registry subkey: HKEY_CLASSES_ROOT \.html
Make sure that the value of the String (Default) is "htmlfile". If it's not "htmlfile", right-click (Default), click Modify, input htmlfile in the Value data box, and then click OK.