PRB: MSDN Library Topics Display ActiveX Control Warning

• MSDN Library
• Microsoft Windows NT Workstation version 4.0

SYMPTOMS

When displaying any topic in the MSDN Library on Windows NT 4.0, the following error appears:

This page provides potentially unsafe information to an ActiveX control. Your current security settings prohibit running controls in this manner. As a result, this page may not display correctly.

CAUSE

An incorrect or corrupt version of Comcat.dll is on the Windows NT 4.0 system. Usually, this happens when Comcat.dll is incorrectly updated to a 5.0 version of the file.

For more information, see the following Knowledge Base article:

Q201364 PRB: Mismatched Ole32.dll and Comcat.dll

RESOLUTION

Use the following steps to restore the 4.71 version of Comcat.dll:

1. Close all running applications.



2. On the Start menu, click Run.



3. Type CMD, and then press ENTER.



4. When the command prompt appears, navigate to the System directory where Comcat.dll resides. For example, the following command will navigate to the C:\Winnt\System32 directory:

   
   cd C:\Winnt\System32 




5. Next use the rename command as follows:

   
   rename Comcat.dll Comcat.bak 




6. Close the command prompt window.



7. Restart the computer.



8. Download and install VBRun60sp3.exe to place the 4.71.1460.1 version of Comcat.dll on the system. Please see the following Knowledge Base article on VBRun60sp3.exe:

   Q235420 FILE: VBRun60sp3.exe Installs Visual Basic 6.0 Run-Time Files

STATUS

This behavior is by design.

REFERENCES

For more information, please see the following Knowledge Base articles:

Q201364 PRB: Mismatched Ole32.dll and Comcat.dll

Q240092 OL2000: Error Message This page provides potentially unsafe information to an Active X control. Your current security settings prohibit running controls in this manner. As a result, this page may not display properly.

Q177943 ActiveX Errors Running Microsoft Internet Explorer 4.0

Q235653 Err Msg: This Page Provides Potentially Unsafe Information to an ActiveX Control

Additional query words:

Keywords : kbHTMLHelp kbMSDN kbNTOS400 kbDSupport kbGrpDSTools
Version : WINDOWS:; winnt:4.0
Platform : WINDOWS winnt
Issue type : kbprb