Update: UltraVNC 1.4.3.6 and UltraVNC SC 1.4.3.6: viewtopic.php?t=37885
Important: Please update to latest version before to create a reply, a topic or an issue: viewtopic.php?t=37864

Join us on social networks and share our announcements:
- Website: https://uvnc.com/
- GitHub: https://github.com/ultravnc
- Mastodon: https://mastodon.social/@ultravnc
- Facebook: https://www.facebook.com/ultravnc1
- X/Twitter: https://twitter.com/ultravnc1
- Reddit community: https://www.reddit.com/r/ultravnc
- OpenHub: https://openhub.net/p/ultravnc

Single Click download blocked by IE and Edge

Single Click discussions / bugs
Post Reply
Spurkiss
Posts: 2
Joined: 2012-01-04 21:03

Single Click download blocked by IE and Edge

Post by Spurkiss »

The latest single click generator seems to be producing an executable that is getting blocked by internet explorer and edge browsers as corrupt or invalid. I'm using the Feb 2015 generator found here (not the UAC or the windows 8/10 experimental).

http://uvnc.com/downloads/single-click/ ... loads.html

Has anyone else experienced this, or more importantly, know a way to resolve it? An older .exe I have downloads fine...

Image
-Spurk
User avatar
Rudi De Vos
Admin & Developer
Admin & Developer
Posts: 6831
Joined: 2004-04-23 10:21
Contact:

Re: Single Click download blocked by IE and Edge

Post by Rudi De Vos »

sha-1 signing need to be replaced by sha-2.
MS blocked faster then expected the sha-1 certificats for the new Os's.
We already get the new certs, but still need to be implemented for the auto signing from the online ccreators.

R.
User avatar
Rudi De Vos
Admin & Developer
Admin & Developer
Posts: 6831
Joined: 2004-04-23 10:21
Contact:

Re: Single Click download blocked by IE and Edge

Post by Rudi De Vos »

signing updated, please test
Spurkiss
Posts: 2
Joined: 2012-01-04 21:03

Re: Single Click download blocked by IE and Edge

Post by Spurkiss »

Tested it out and is working quite well, thank you!

We notice that we are having to use the refresh icon a lot to get the whole screen to draw properly consistently -- any suggestions on how to minimize the need for that?

Thanks again,
Sheldon
David4
8
8
Posts: 24
Joined: 2010-08-11 15:13

Re: Single Click download blocked by IE and Edge

Post by David4 »

There's a similar problem here. I compiled SC to run directly without helpdesk.txt, so no file in %temp% has to be executed, because it is (and should be) forbidden per Software Restriction Policies. This worked fine until Windows 7. But how can I avoid the IE/Edge-problem?

2nd question: I just updated vncviewer.exe to http://www.uvnc.eu/sc/sc_viewer.zip It seems to be better than the older version, but there's a little issue after connecting to the server. When the screen is transfered completely it is immediately transfered once again. With simple screen-content it's only a flicker but with a large screen and a varied colorful browser-window there is a annoying delay.
User avatar
Rudi De Vos
Admin & Developer
Admin & Developer
Posts: 6831
Joined: 2004-04-23 10:21
Contact:

Re: Single Click download blocked by IE and Edge

Post by Rudi De Vos »

The problem is that exe need to be signed.
Our version ( online created) get signed to overcome this issue, but if you compile your own you need to sign it yourself.

This actual an old viewer. SC is a realy old source ( still bould with VC6.0, win98 compiler) This makes the exe small and portable to all OS's. SC behave better with the old viewer. The old viewer had this double init issue. Did you already tried by presetting an encoder instaed of the auto mode.
David4
8
8
Posts: 24
Joined: 2010-08-11 15:13

Re: Single Click download blocked by IE and Edge

Post by David4 »

Rudi De Vos wrote:Our version ( online created) get signed to overcome this issue
I don't have a certificate and don't want to spent money for nothing but MSs new nonsense. Is there a way to sign the exe without having an own certificate?
Did you already tried by presetting an encoder instaed of the auto mode.
Now I tried, but without a difference. I discovered, that checking "Preemptive Updates" makes the connect faster but seems to be slower afterwards. I miss a documentation for this feature, what does this do exactly? My workaround now is to uncheck "preemtive updates" after connect.
Thanks for your reply - and all your work on VNC/SC.
User avatar
Rudi De Vos
Admin & Developer
Admin & Developer
Posts: 6831
Joined: 2004-04-23 10:21
Contact:

Re: Single Click download blocked by IE and Edge

Post by Rudi De Vos »

No work around for the signing, and sorry, we don't sign exe not compiled by us.

preemtive updates.
Normal
viewer ask update--server encode--server send--viewer receive--viewer display--viewer ask update
preemtive
viewer ask update--server encode--server send--viewer receive (first data)--viewer ask next update--viewer receive--viewer display

This makes it sometimes faster.
flcpuman
Posts: 1
Joined: 2016-09-07 20:41

Re: Single Click download blocked by IE and Edge

Post by flcpuman »

I just recompiled my EXE and we are still getting the invalid signature issue... Please help!
User avatar
Rudi De Vos
Admin & Developer
Admin & Developer
Posts: 6831
Joined: 2004-04-23 10:21
Contact:

Re: Single Click download blocked by IE and Edge

Post by Rudi De Vos »

used uploader ?
What signing do you see when you check the properties of the file ?
comfine
Posts: 7
Joined: 2014-07-21 16:48

Re: Single Click download blocked by IE and Edge

Post by comfine »

as we have problems with the newest version (https://forum.ultravnc.net/viewtopic.php?f=5&t=31820) we use not the experimental one - can you update the signature-process for the earlier-version-generators aswell?
User avatar
Rudi De Vos
Admin & Developer
Admin & Developer
Posts: 6831
Joined: 2004-04-23 10:21
Contact:

Re: Single Click download blocked by IE and Edge

Post by Rudi De Vos »

All signing has been updated a while ago, just right clcick the downloaded exe and check the signing.
comfine
Posts: 7
Joined: 2014-07-21 16:48

Re: Single Click download blocked by IE and Edge

Post by comfine »

its sha1, timestamp 6. october 2016. (i generated the exe in october 2016)
User avatar
Rudi De Vos
Admin & Developer
Admin & Developer
Posts: 6831
Joined: 2004-04-23 10:21
Contact:

Re: Single Click download blocked by IE and Edge

Post by Rudi De Vos »

new versions are signed with a sha256, updated begin november
Post Reply