Microsoft KB Archive/935776

= FIX: The InternetQueryOptionW function returns a value of true when you use the INTERNET_OPTION_URL option flag as the second parameter in Internet Explorer 7 =

Article ID: 935776

Article Last Modified on 11/15/2007

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APPLIES TO


 * Windows Internet Explorer 7
 * Windows Internet Explorer 7 in Windows Vista
 * Windows Internet Explorer 7 for Windows Server 2003
 * Windows Internet Explorer 7 for Windows Server 2003 IA64
 * Windows Internet Explorer 7 for Windows XP

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SYMPTOMS
In Windows Internet Explorer 7, the Microsoft Windows Internet (WinINet) function InternetQueryOptionW returns a value of true when you use the INTERNET_OPTION_URL option flag as the second parameter of the function. This problem occurs even though the buffer is insufficient or NULL.

For example, the clause that you use resembles the following: bRet = InternetQueryOptionW(hHttpRequest, INTERNET_OPTION_URL, NULL, &dwSize); You expect that the InternetQueryOptionW function will return a value of false because the buffer is NULL. However, the InternetQueryOptionW function returns a value of true.

Note This problem does not occur in earlier versions of Microsoft Internet Explorer. Also, this problem does not occur if you use the InternetQueryOptionA function.



CAUSE
This problem occurs because of an error in the Wininet.dll file.



Security update information
To resolve this problem, install the most current cumulative security update for Internet Explorer. To install the most current updates, visit the following Microsoft Web site:

http://windowsupdate.microsoft.com

For more technical information about the most current cumulative security update for Internet Explorer, visit the following Microsoft Web site:

http://www.microsoft.com/technet/security/current.aspx

Note This fix was first included in security update 937143 (MS07-045). For more information, click the following article number to view the article in the Microsoft Knowledge Base:

937143 MS07-045: Cumulative Security Update for Internet Explorer

Hotfix information
A supported hotfix is now 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 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
You must have Windows Vista, Microsoft Windows Server 2003 Service Pack 2 (SP2), or Microsoft Windows XP Service Pack 2 (SP2) installed to apply this hotfix.

Restart requirement
You must restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

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 item in Control Panel.

Windows XP, x86-based versions


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For more information about the InternetQueryOption function, visit the following Microsoft Developer Network (MSDN) Web site:

http://msdn2.microsoft.com/en-us/library/aa385101.aspx

For more information about option flags, visit the following MSDN Web site:

http://msdn2.microsoft.com/en-us/library/aa385328.aspx

For more information about the Windows Internet API, visit the following MSDN Web site:

http://msdn2.microsoft.com/en-us/library/aa385331.aspx

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

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbfix kbqfe kbpubtypekc kbexpertiseadvanced kbhotfixserver KB935776

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