UltraVNC Remote Access Tools

UltraVNC is a powerful, easy to use and free - remote pc access softwares - that can display the screen of another computer (via internet or network) on your own screen. The program allows you to use your mouse and keyboard to control the other PC remotely. It means that you can work on a remote computer, as if you were sitting in front of it, right from your current location.

VNC, the Remote Frame Buffer protocol (RFB) allows a desktop to be viewed and controlled remotely over the Internet. A VNC server must be run on the computer sharing the desktop, a VNC client must be run on the computer that will access the shared desktop.

UVNC Software Products	UltraVNC	UltraVNC SC	PcHelpWareV2	uvnc2me
GPL	Yes	Yes	No	No
Free	Yes	Yes	Yes	Yes
Bundling (1)	No	No	Yes	Yes
NAT (2)	Yes (4)	Yes (4)	Buildin	Buildin
NAT2NAT (3)	Via Repeater (5)	Via Repeater	Buildin	Buildin
Network Protocol	TCP	TCP	UDP	UDP
Access	IP Address	IP Address	Access Code	Access Code
Encryption	Plugin	Plugin	Buildin AES	Buildin AES
Key	Plugin	Plugin	256bit	256bit
Password	8 chars (6)	8 chars	32 chars	8 chars (7)
Chat	Yes	Yes	Yes	Yes
Filetransfer	Yes	Yes	Yes, via chat	Yes, via chat
Service	Yes	No	Yes	No
Session (8)	Console/Current	Console/Current	Console/RDP (9)	Console/Current
Connection Manager	No	No	Yes	No
Difficulty	5	8	3	1

(1) GPL doesn't allow bunding of GPL and non GPL software. If you want to use UltraVNC or UltraVNC SC in combination with a commercial software you need to create a seperate installer or let your installer download UltraVNC. PcHelpWare or uvnc2me can be bundled without restriction.
(2) One site is connected to the internet the other is behind a nat router.
(3) Both sites are behind a nat router.
(4) The site behind the nat router need to initiate the connection.
(5) A seperate application "repeater" is needed. Both sites make an outgoing connection to the repeater and the repeater cross the data.
(6) Using the encryption plugin you can use a longer password or a predefined key.
(7) The password is generated for each session, access code is fixed.
(8) Runing as service you always clone the console, if started as application you clone the current session (console/RDP).
(9) PcHelpWare has a preconnect screen that allow to select a RDP or the console session.

Supported operating systems

- Microsoft Windows 7, 8, 8.1, 10, 11, Windows Server 2008 R2, Server 2012, Server 2012 R2, Server 2016, Server 2019, Server 2022 current version: https://uvnc.com/downloads/ultravnc.html
- Microsoft Windows XP, Server 2003, Vista, Server 2003 R2, Server 2008: latest version: https://uvnc.com/downloads/ultravnc/129-download-ultravnc-1231.html
- Microsoft Windows 95**, 98**, ME**, NT4**: latest version: https://uvnc.eu/download/102/
- Microsoft Windows 2000: latest W2K version: https://uvnc.eu/download/1215/Ultravnc_w2k_1215.zip
Its embedded Java Viewer allows you to connect (and make File transfers) from a simple Web Browser on any system supporting Java (Linux, Mac OS, ...) to an UltraVNC Server.
PcHelpWare and uvnc2me require XP or later.

Compatibility

All VNC flavors follow the RFB protocol. This common start point means that most of the VNC flavours available today "usually" talk nicely together, allowing for easy cross platform desktop sharing to occur.
PcHelpWare and uvnc2me are not RFB compatible.

Remote PC Access Software

If you provide computer support, you can quickly access your customer's computers from anywhere in the world and resolve helpdesk issues remotely! With addons like Single Click (SC) your customers don't even have to pre-install software or execute complex procedures to get remote helpdesk support.