Several laptops and PCs that I manage have been unable to install Adobe Reader and Adobe Flash from the website because of this message saying that Internet Explorer has "blocked this software because it can't verify the publisher". It appears to be the Adobe Download Manager that has the issue, because I can do the Reader and Flash installs from the support page that bypasses the DLM.
Normally, if it were just my computers having the problem, I would work around the issue and be on my way. However, multiple PCs and laptops from multiple locations and ISPs are having the same issue, and my users are calling me when they can't successfully install the software updates. Considering how frequently Adobe has been releasing security patches for their software, it has gotten to be somewhat of a timesink.
I was hoping there might be some workaround that I could implement, or maybe (just maybe) there was a problem on Adobe's end that could eliminate the problem.
It happens on Windows XP and Windows 7 computers using IE 8. We don't have any Vista computers. The error message shows that during the install of the activex control, that the publisher is unknown, and the file in question is "gp.cab". It is trying to download from:
I've tried adding the website above, and get.adobe.com as well, to the "Trusted Sites" list, to no avail. Any suggestions would be most welcome.
I don't know how to fix the DLM problem -- I simply never use the DLM, but always use a direct download. What I did in my company was to send out a message to everyone when a product update became available, with a link to the direct download, e.g.
That's something that I've considered already, but I was hoping to find a solution to the problem. I try not to leave anything to chance, and at least with the Flash updates, there's a chance that they would click on the wrong link, or try to install both, and it would confuse some people with less computer know-how.
Not to mention that I would have to find the direct download link for Reader each time a patch comes out, which always seems to be buried on their website so deep that it is nearly impossible to find. At least Flash uses the same link each time for its most current version. They need to do the same thing for Reader, IMHO.
So is there no solution for this? What a pain...