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Using Javascript to pass data to an activex control in a classic asp page is blocked by IE

Posted on 2009-03-30
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Last Modified: 2012-06-27
I have a VB6 ActiveX control embedded onto a Classic ASP web page. Once the ActiveX has been loaded JavaScript is used to pass additional information to the control at different intervals of time. When an attempt is made to pass the information i receive the following message:  "Internet Explorer has blocked this site from using an ActiveX control in an unsafe manner".

The ActiveX is digitally signed and has been marked as safe for scripting.

I have seen variations of this issue arise on other posts but no-one seems to have a programmatic solution to the problem. I believe the issue also only arise with IE7+ and not IE6.

I know the issue lies with the Javascript as I have commented out the script which interacts with the activex control and the issue no longer exists.

One solution but not ideal is to change the IE security setting from disabled to either prompt or enabled for "Initialize and script ActiveX controls not marked as safe for scripting". This solution is not ideal as I would not expect every user who runs the ActiveX to perform this action.

I have not listed any code snippets as the code works when the action in the above paragraph is performed therefore the issue can not be within the code as such.
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Question by:solobutt
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by:solobutt
ID: 24020562
The website has also been added to my trusted site list.
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solobutt earned 0 total points
ID: 24039198
I have now found the solution and this could be useful to someone who creates their own CAB files.

View:
http://support.microsoft.com/kb/221541

The issue lies with not having the the following entry in the .inf file before creating the CAB file

[AddToRegistry]
HKLM,"SOFTWARE\Classes\CLSID\{04CD5348-D028-11D2-82A6-00C04FB9D847}\Implemented Categories\{7DD95802-9882-11CF-9FA9-00AA006C42C4}"
HKLM,"SOFTWARE\Classes\CLSID\{04CD5348-D028-11D2-82A6-00C04FB9D847}\Implemented Categories\{7DD95801-9882-11CF-9FA9-00AA006C42C4}"


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