Cached HTC files generate additional GET requests in Internet Explorer 6

After you submit a request in an Active Server Pages (ASP) Web page that returns (or caches) an HTML Component (HTC) file on your computer, when you next submit a request in that ASP page, Microsoft Internet Explorer generates an additional If-Modified-Since GET request to the server. This problem occurs even though the HTC file has not expired.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Installation information

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

To turn on this hotfix, follow these steps:

1. Quit Internet Explorer.
2. Click Start, and then click Run.
3. In the Open box, type regedit, and then click OK.
4. Locate and then click the following registry subkey:
   HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_NORESYNC_FOR_HTCS_840312
5. Point to New on the Edit menu, and then click DWORD Value.
6. Type Iexplore.exe, and then press ENTER.
7. Right-click Iexplore.exe, and then click Modify.
8. In the Value data box, type 00000001, and then click OK.
9. On the File menu, click Exit to quit Registry Editor.

Microsoft has confirmed that this is a problem in Microsoft Internet Explorer 6.

For more information, click the following article number to view the article in the Microsoft Knowledge Base: