Download TightVNC 2.7.1

There are several programs to control computers remotely. TightVNC is one such program and as the name implies, it uses VNC. ‘Tight’ refers to the use of compression, so that the program also performs well over slow connections. Since version 2.0, TightVNC is only suitable for Windows 2000 and above, Windows 9x/NT and Linux users should version 1.3.10 keep using. Since version 2.5 there have been separate 32bit and 64bit downloads and support for the fast mirror video driver DFMirage has been added. In version 2.7.1 the following changes and improvements have been made:

Server for Windows

• If a server is running on Windows 8, remote desktop screen is updated much faster.
• Now it is possible to show a single application rather than the whole remote desktop. For that, run a server with a -shareapp CLI option and pass a running process ID as its argument.
• Increased security when password protection for a server is used: if Administration > Ask password for each operation is checked, a password is required each time the settings are changed.
• Administration -> Protect control operations with a password flag is: if checked, a password is required each time the settings are changed.
• Added ZRLE and RRE encoding support.
• Fixed issues when Extra Ports are used: now clients can safely establish connection to a server.
• When a client has disconnected, pressed key states are reset on the server side.
• Fixed an issue with drawing of a cursor on the server side when Let remote server deal with cursor option is enabled in the Viewer settings. Transparency issues for a cursor are also fixed.
• Fixed a bug with desktop size after the screen DPI is changed.
• Invalid JPG data now leads to error throwing rather than crashing.
• Fixed a bug with queued and non-sent updates on desktop changes.
• Fixed a missing system libraries error on Windows 2003 (sometimes wtsapi32.dll or psapi.dll could not be found).

Viewer for Windows

• Now it is possible to change the port the Viewer listens on (in the Listening mode) and reconnect to the server right on the fly.
• Now Viewer can successfully connect to servers that require RFB protocol 4.0 or higher (in fact, RFB 3.8 will be used to establish connection).
• If minimized, a full-screen window is now restored as a full-screen application rather than a windowed one.
• Ctrl + M command is now applicable when in the full-screen mode.
• Now correct resolution is reported in the Connection info window when a remote screen size is not divided by 4.
• Fixed invalid memory allocations that caused Viewer to crash when a Tight or ZRLE decoder is used.
• Fixed a bug with VNC session files if a port is less than 100.
• Fixed grayscale color issue (instead of a full color) when a Tight decoder is used.
• Fixed rare mouse scrolling issues.
• Fixed memory leaking when incorrect JPG data is received.
• Fixed a bug when Viewer cannot connect to a server (with Windows XP or Windows 2003) with a Unicode name.
• Now a file transfer dialog can be in the background.

Source Code (Server and Viewer)

• Added dependencies from Windows 8 SDK. Now the source code can be built in Windows 7, Windows Server 2008 R2, Windows 8 and Windows Server 2012.
• Fixed issues with a Virtual Studio 2010 project file.
• Fixed a thread-related deadlock when waiting for a thread to start.
• Fixed a bug with image corruption when multiple clients are connected to a server (due to the refactored Server code).
• Fixed issues with string loading from *.rc files in non Unicode builds.
• Added correct error handling on Server or Viewer crashing (a proper message is now shown).
• zlib library has been updated to version 1.2.7.