UltraVNC for Windows

VNC stands for Virtual Network Computing. Based on a simple, robust protocol, VNC connections let you remotely view and control one computer from another using the Internet or a private network. UltraVNC, a popular VNC implementation, allows users to create VNC connections between two or more PCs running its software. UltraVNC is free to use, making it an attractive option for users needing remote access. Still, it is powerful enough to serve as a tool for customer support and remote administration.

 It’s relatively easy to use compared to other VNC packages but is not necessarily intended for beginners. To set up a connection, users must install the client (Viewer) on one system, and the Server on another, and both PCs must allow remote access. The online documentation includes screenshots but is somewhat limited in places and assumes the user has some knowledge of network configuration. However, anyone familiar with setting up their network should be able to configure a VNC connection with UltraVNC. In testing, we ran UltraVNC's 64-bit version on Windows 7 PCs.

Like other VNC apps, UltraVNC has two main components: the Viewer and the Server. The download installs both. Setup requires creating a password for secure access and allowing UltraVNC through your firewall when you first run the Server. The Viewer offers numerous configuration options, such as setting the level of access and control, adjusting display settings, and enabling or disabling features like clipboard transfers. We recommend keeping the default "Auto Select Best Settings" options where available for ease of use.

Additionally, you will need to configure each machine involved in the remote connection. Still, UltraVNC allows you to test the connection by allowing loopback connections and ensuring everything is set up correctly. Once UltraVNC is properly configured, establishing a remote connection is straightforward and seamless—almost as easy as the Windows home networking feature, but with more advanced features and customization options.

UltraVNC is ideal for anyone needing remote work or home PC access. It is particularly useful for software developers issuing updates, network administrators monitoring and administering remote PCs, or individuals wanting to manage their home network remotely. Its versatility and range of features make it an excellent tool for personal and professional use.

However, it’s important to note that while UltraVNC is a powerful and free tool, alternative options, such as AnyDesk, offer similar remote desktop capabilities but with some key differences. AnyDesk, for example, is known for its low latency and high-speed performance, even with a weak internet connection. This makes it particularly useful for users in remote areas or those working with larger files or high-bandwidth applications. Additionally, AnyDesk features a simplified setup process compared to UltraVNC. It requires minimal configuration, and the user interface is more intuitive, making it easier for beginners. In contrast, UltraVNC’s setup can be somewhat more complex, especially when configuring firewall and network settings. While UltraVNC offers robust options for those familiar with network configuration, AnyDesk's user-friendly interface and reliable performance make it an appealing choice for those who prioritize ease of use.

Recent updates to UltraVNC have improved several aspects of its performance and security. Some notable changes include the cleanup of compiler warnings, the enhancement of mouse position correction across multiple monitors, and updates to its performance mode that activates when the system CPU reaches 100%. Security fixes, contributed by Pavel Cheremushkin, have further strengthened UltraVNC’s reliability. Furthermore, updates to the ddengine (which handles screen rendering) have improved the flashing cursor behavior and overall performance, particularly when the screen resolution changes. These improvements demonstrate UltraVNC’s ongoing commitment to providing a robust, secure remote access solution.

In conclusion, UltraVNC remains a top choice for advanced users who need a highly customizable and free remote desktop solution. Its rich features make it ideal for professionals, but it may not be the best option for those requiring a more user-friendly setup. AnyDesk could be a better fit for those looking for a simpler alternative with higher performance and ease of use.

• Cleanup compiler warnings
• Redraw full screen after fullscreen
• Mouse position correction multi monitor
• uvnc_settings.exe ( check mirror driver)
• Delete race condition invers connection
• Using reconnect thread, better repeater behaviour
• ddengine fix when screen resolution change online
• SDK win10 fix for VS 2017
• Security fixes: Thanks to Pavel Cheremushkin.
• ddengine update flashing cursor + performance
• Added performance mode, activated when max cpu is set to 100