Microsoft KB Archive/174864

= PRB: ActiveX Control with DLL Extension Doesn't Download =

Article ID: 174864

Article Last Modified on 5/11/2006

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APPLIES TO


 * Microsoft ActiveX SDK

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This article was previously published under Q174864



SYMPTOMS
When an ActiveX control with an extension of .dll is placed on an HTML page using the  tag and CODEBASE attribute, it may not download to the client's machine:  



CAUSE
If the directory where the DLL resides is set up with Execute access in Internet Service Manager, Internet Explorer will treat it as an ISAPI DLL and attempt to execute it.



RESOLUTION
To resolve this problem, turn off Execute access for the directory in Internet Service Manager. Another alternative is to rename the control from .dll to .ocx. You can also create a CAB file, in which case the extension of the file being downloaded would be .cab (CAB files are documented in the ActiveX SDK and the Cabinet SDK).



STATUS
This behavior is by design.

