[THIN] Re: Win2012 RDS RD Web Access - Allow Active X installation - GPO setting?

  • From: Michael Leone <oozerdude@xxxxxxxxx>
  • To: thin@xxxxxxxxxxxxx
  • Date: Tue, 11 Feb 2014 09:30:30 -0500

As it turns out:

In my case, the root CA was added as a trusted root authority via GPO
(I used self-signed certs from a Linux CA, not an MS CA).
In the IE Trusted sites, we have *.,my-local.domain, so all local
sites are trusted.
And - most importantly, I think - I have the thumbprint of the domain
certificate I installed on my RD Web Access server listed as a
"trusted thumbprint" in the GPO
"The setting is located under:

Computer Configuration\Policies\Administrative Templates\Windows
Components\Remote Desktop Services\Remote Desktop Connection Client

Specify SHA1 thumbprints of certificates representing trusted .rdp publishers"


Once I did all 3, I was not prompted to install the Active X control.
Nor was I prompted when running my published RemoteApps. So that is
looking good ...

On Fri, Feb 7, 2014 at 9:41 AM, Greg Reese <gareese@xxxxxxxxx> wrote:
> my past experience with this was a couple years ago and the answer from MS
> was that the user must explicitly choose to allow and there is no turning it
> off. It will present to the user at least once, after that it is fine.
> On Fri, Feb 7, 2014 at 8:37 AM, Raffensberger, Stephen D
> <sraffens@xxxxxxxxxxx> wrote:
>> Wow. I thought all kinds of people who know more than I do would have
>> chimed in by now.
>> My only suggestion is to make sure that https://rds-server-FQDN is in the
>> users' IE trusted sites zone.
>> Steve Raffensberger
>> Citrix Administrator
>> Produban US
>> sraffens@xxxxxxxxxxx
>> -----Original Message-----
>> From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
>> Behalf Of Michael Leone
>> Sent: Thursday, February 06, 2014 3:42 PM
>> To: thin@xxxxxxxxxxxxx; ntsysadm@xxxxxxxxxxxxxxxxxxx
>> Subject: [THIN] Win2012 RDS RD Web Access - Allow Active X installation -
>> GPO setting?
>> I'm having a devil of a time trying to figure this out. We are preparing
>> to roll out Windows 2012 RDS; we are going to be using published RemoteApps
>> to our users in their web browsers. However, the first time a user accesses
>> the site, they are prompted to run an Active X control "Microsoft Remote
>> Desktop Services Web Access Control". I am trying to set our Group Policy to
>> allow the automatic installation of this particular Active X control. And I
>> can't seem to figure out what settings to change.
>> I've looked at "Computer, Administrative Templates, Windows
>> Components,Active X Installer Service". I enabled "Approved Installation
>> Sites", and put in the URL of "https://rds-server-FQDN/RDWeb";, and value
>> "2,2,1,0". This should allow the installation (I thought) of this control.
>> Turns out, the user is still being prompted.
>> Anybody know what else I have to enable, so my user isn't prompted to
>> install the Active X control, and it just installs automatically? Just the
>> controls from my one site should be allowed.
>> Thanks
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