BUG: Error When You Load .NET Windows Forms Controls and ActiveX Controls on Same Web Page (309326)
The information in this article applies to:
- Microsoft Internet Explorer (Programming) 6.0
- Microsoft Internet Explorer (Programming) 5.01 SP1
- Microsoft Internet Explorer (Programming) 5.5
- Microsoft .NET Framework 1.1
- Microsoft .NET Framework 1.0
This article was previously published under Q309326 SYMPTOMS You may encounter a security exception under the following
circumstances:
- You host a .NET control that is globally unique identifier
(GUID)-activated on the same dynamic Hypertext Markup Language (DHTML) page as
a .NET control that is namespace-activated (that is, a .NET control whose
assembly you download from an HTTP server). -and-
- The GUID-activated control tries to access privileged
system resources such as the file system.
This problem occurs most often on Microsoft Windows NT
4.0-based systems. However, this problem may also occur on systems that are
running Microsoft Windows 2000 or Microsoft Windows XP. CAUSE If the DHTML page lists the namespace-activated control
first, the GUID-activated control is hosted in the application domain of the
first control. Because this application domain is restricted, you cannot
perform client-side operations that are generally considered unsafe for a DHTML
page. For example, this restricted domain does not allow you to randomly access
the file system or to run unmanaged code. RESOLUTION To work around this problem, move the <OBJECT> tag
for the GUID-activated control above the <OBJECT> tag for the
namespace-activated control. This prevents the GUID-activated control from
being hosted in the wrong application domain. STATUSMicrosoft has confirmed that this is a bug in the Microsoft
products that are listed at the beginning of this article.
| Modification Type: | Major | Last Reviewed: | 10/13/2003 |
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| Keywords: | kbCtrl kbbug kbDHTML kbpending kbreadme KB309326 |
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