After more 2 000 000 (two million) views on forum for 1.5.0.x development versions... and 1.6.1.0, 1.6.3.0-dev versions
A new stable version, UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38095
Feedback is always welcome

2025-12-05: Celebrating the 23th anniversary of the UltraVNC (26th anniversary since the laying of the foundation stone): https://forum.uvnc.com/viewtopic.php?t=38130

2025-12-03: Could you please complete our poll/survey? Renaming UltraVNC files and service to be more clear: https://forum.uvnc.com/viewtopic.php?t=38128
There was a problem to vote, it is solved now! Thanks in advance!

2025-12-02: We need help: English Wikipedia UltraVNC page has been requested to deletion: https://forum.uvnc.com/viewtopic.php?t=38127
Any help is welcome to improve the UltraVNC page and/or to comment on the Wikipedia Talk page

2025-05-06: Forum password change request: https://forum.uvnc.com/viewtopic.php?t=38078

2023-09-21: Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864

Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome

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SingleClick and DSM plugins

Should you have problems with the DSM plugin? Here is the place to look for help or report issues
Post Reply
mikeybikey
Posts: 1
Joined: 2013-01-15 01:15

SingleClick and DSM plugins

Post by mikeybikey »

Hi

I put a SC remote_desktop.exe together for a friend running 32 bit Intel Win XP. It worked fine unencrypted. Then I put one together using the distributed rc4.key. I understand (now) that you have to generate a new one. Anyway when I tried it with the distributed rc4.key I got:

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VncViewer Message Box
---------------------

Info Message

Connection failed - Invalid Protocol !

Possible causes:

- You've forgotten to select a DSMPlugin and the Server uses a DSMPlugin
- Viewer and Server are not compatible (they use different RFB protocols)
If I run viewer and check

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Use DSMPlugin MSRC4Plugin.dsm
MSRC4Plugin.dsm from http://ftp.erm.tu-cottbus.de/ultravnc/D ... Plugin.dsm and then click on

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config
I get:

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Plugin Activation
-----------------

The Plugin cannot be loaded.
Please check its integrity.
If I chose

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msrc4plugin.dsm
from somewhere (link at http://www.uvnc.co.uk/onlinehelp/7.html to http://www.swiss-adsl.net/redge/msrc4plugin.dsm is broken) I get:

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UltraVNC Viewer - Win 32 1.1.8: vncviewer.exe - Bad Image
---------------------------------------------------------

C:\Program Files\uvnc bvba\UltraVNC\msrc4plugin.dsm is either not designed to run on Windows or it contains and error.  Try installing the program again using the original installation media or contact your system administrator or the software vendor for support.
Also I installed

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UltraVNC_1_1_8_X64_Setup.exe
but the title of the Viewer says

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Win32 1.1.8
I thought I understood from the http://adamwalling.com/SecureVNC/ that SecureVNC is backwards compatible but I assume I still need to generate a new rc4.key but I don't know how outside of the Viewer (which doesn't work as above).

I can post other info if requested. Apologies if this confused. I am.

Thanks in advance for any help,
Mike
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