Internet Explorer Add-on Installer Security Warning (title)
Windows has found a problem with this file
This file was blocked because it does not have a valid digital signature that verifies the publisher.
I first tried all of the suggestions in the article below. The problem persisted. This machine is using the default ActiveX Settings (Internet Options > Security settings > Reset all zones to default level), as are several other machines, none of which experience this problem.
Then I stumbled upon the idea below and it worked for me!
Internet Options > Advanced tab > Security section.
[x] Allow software to run or install even if the signature is invalid (def=unchecked)
I tried to access the camera (FI8910W) again, and this time the Foscam ActiveX control (DVM_IPCam2.ocx v0.0.0.39) installed. Yeah! After this I went back and unchecked the security setting above.
Environment: Windows 7 32-bit, Internet Explorer 9 32-bit, FI8910W
Note. Three other machines running Win7/IE9 and one machine running WinXP/IE8 have accessed this camera and did not experience this problem.
I have since come across two more PCs with the same issue, and the same solution. One was running WinXP, the other running Vista.
I hope this suggestion might help someone else.
When I investigated, I found that the machines that were able to install this .ocx without any problems ALREADY had the setting below UNCHECKED.
[_] Allow software to run or install even if the signature is invalid
So, for whatever reason, some machines have this setting checked, while others have it unchecked.
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Get an error message saying "A website add-on for this website failed to run".
No problem access the camera on Friday, but can't today. Changed system date, etc. and no success.
Any ideas anyone?
(FI8910W, using activeX foscam access with Internet Explorer v11, computer is a Windows 7 bits)
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