In some scenarios, you may be unable to open a PDF document in Windows Internet Explorer 7 or in Internet Explorer 6. In some scenarios, a PDF document may not appear correctly in Internet Explorer.
This problem occurs because of the method that is used to determine the MIME type of downloaded content. This problem occurs even if the content MIME type is declared as "application/pdf."
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:
For more technical information about the most current cumulative security update for Internet Explorer, visit the following Microsoft Web site: Note
This fix was first included in security update 947864 (MS08-024).
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
MS08-024: Cumulative Security Update for Internet Explorer
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about how Internet Explorer determines the MIME type, visit the following Microsoft Web page: