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Proxifier Changelog

What's new in Proxifier 4.12

Sep 25, 2023
  • Network driver updated to meet the latest Microsoft requirements
  • Driver installation problem on ARM platform fixed
  • Improved error reporting
  • Minor network and UI improvements

New in Proxifier 4.11 (Dec 16, 2022)

  • Proxifier can now log and block UDP connections
  • Added a master option that controls other settings responsible for IP address leak prevention (Profile->Advanced->DNS and IP Leak Prevention Mode)
  • Added an option to block non A/AAAA DNS queries (Profile->Advanced->Block Non A/AAAA Queries if DNS through Proxy)
  • Adjustable log window font size
  • Log window rendering issues
  • Multiple minor fixes and improvements in Proxifier, ProxyChecker and ServiceManager

New in Proxifier 4.07 (Nov 2, 2021)

  • Windows on ARM support
  • Service Mode minor optimizations
  • Installation in unattended mode (e.g., SCCM) fixed
  • Portable version may crash other apps on exit
  • Windows high contrast mode support

New in Proxifier 4.05 (Mar 9, 2021)

  • Silent installation and uninstallation fixed
  • "Cannot connect to placeholder (fake) IP address" error fixed
  • Improved logic of rules processing when "DNS over Proxy" is enabled
  • IPv4 preferred to IPv6 for the localhost connections
  • Customizable subnet for fake IP addresses
  • Improved handling of errors related to profile loading
  • Documentation updated and linked in UI
  • Log window auto scroll fixed
  • Improved trial and license registration experience
  • Minor UI optimizations and improvements

New in Proxifier 4.03 (Nov 4, 2020)

  • "Cannot connect to placeholder (fake) IP address" error fixed for IPv4-mapped IPv6 connections
  • Crash when working with multiple manual rules (created from right-click context menu)
  • In some scenarios, system connections may not work properly when name resolution over proxy is enabled
  • Various minor improvements

New in Proxifier 4.01 (Oct 27, 2020)

  • Release version
  • Install/uninstall logic improved
  • Drag and drop of profile files (*.ppx)
  • Load balancing chain can now use the same proxy for the same process

New in Proxifier 4.01 Beta 3 (Sep 29, 2020)

  • Proxifier can now run as a native Windows Service
  • Proxifier Service Manager tool (ServiceManager.exe) introduced
  • Proxifier Portable Edition is now available
  • All binaries have been compiled in release mode
  • BSOD caused by some specific non-DNS traffic on UDP port 53
  • Profile auto update fixed
  • Log performance improved
  • Minor UI tweaks and optimizations

New in Proxifier 4.01 Beta 2 (Sep 29, 2020)

  • Cannot connect to placeholder (fake) IP address error fixed
  • Crash on Proxifier exit
  • Verbose button added to connection list window
  • Correct processing of different screen log and file log levels
  • Driver message: 397:g_NfeFlowListSize is too big error fixed
  • Crash under a heavy load
  • Main menu disappears when a pane auto hides
  • Ordinal 381 could not be located in ProxifierShellExt.dll error fixed
  • Other improvements and optimizations

New in Proxifier 4.01 Beta 1 (Jul 7, 2020)

  • Completely Rewritten Network Engine:
  • The new network engine is based on Windows Filtering Platform (WFP) technology. This is the most up-to-date way to handle traffic on the Windows platform. It provides a number of unique features, including the following:
  • Ability to handle all connections, including Windows Store apps, Windows Subsystem for Linux (WSL), and Windows Sharing Folders
  • Improved performance in high-load scenarios
  • Significantly reduced number of conflicts with third-party software (e.g., antivirus software)
  • Network Interfaces:
  • Proxification Rules can now be bound to network interfaces. This allows Proxifier to work in completely new scenarios when you need to select targets and applications that should be connected over a specific interface (Ethernet, Wi-Fi, VPN, etc.).
  • This effectively allows you to:
  • use and manage multiple VPN connections and proxy servers at the same time and
  • prioritize traffic based on the availability of different interfaces.
  • Updated User Interface:
  • The Proxifier graphical user interface has been significantly reworked and improved, giving it a new, fresh look and increasing the ease of use. Major updates include the following:
  • All components from icons to controls optimized for high DPI screens
  • Resizable dialogs with adaptive content
  • UI state preserved after program restart
  • New traffic graph
  • Multiple Improvements in All Areas:
  • In addition to the major updates listed above, the new version provides many new features and improvements in all areas of the program, including the following:
  • Paths and PIDs in Proxification Rules
  • Kerberos authentication and custom User-Agent header for HTTPS proxy
  • Helper tool for Service Mode configuration (available in beta 2)
  • An option to pass target hostname instead of IP to proxy
  • No reboot after install/uninstall needed in the vast majority of cases
  • 64-bit build
  • Long paths support
  • Proper processing of connections from pre-bound sockets
  • Multiple reconnect attempts from the same socket supported
  • Improved IPv6 processing
  • Debug log level introduced
  • Connections close gracefully in more cases
  • Proxifier System Tray icon does not disappear
  • Manual Proxification for elevated apps supported
  • Proxifier is more tolerant to Profile file format
  • And much more

New in Proxifier 3.42 (Jan 8, 2019)

  • DNS processing on UDP level [experimental]. It allows Proxifier to support applications like Chrome 69 that work with DNS servers directly and bypass the system resolver.
  • UI is optimized for HiDPI displays and arbitrary scale factors.
  • Improved compatibility with third party applications.
  • Log window optimizations.
  • Other minor optimizations and improvements.

New in Proxifier 3.29 (Dec 7, 2015)

  • Important update that improves reliability under heavy load:
  • When Proxifier is under heavy load, some connections may not follow Proxification Rules as expected.
  • A more robust implementation of NTLM authentication that can work even with non-compliant servers.
  • A workaround option to make Proxifier compatible with some FTP clients like FileZilla:
  • HKEY_CURRENT_USER\Software\Initex\Proxifier\Settings\(DWORD32)DisableGetSockName=1
  • Minor performance improvements.

New in Proxifier 3.28 (May 29, 2015)

  • Windows 10 (Technical Preview Build 10041) support.
  • Compatibility issues that may appear on some systems that run Windows 8.1.
  • DNS Inclusion List added to Name Resolution options.
  • A more robust implementation of NTLM authentication.
  • Unexpected crash that may occur on some system with unstable connection.
  • Proxy Checker works correctly with all authentication options.
  • Profile Auto Update feature can be configured for the entire machine through HKLM registry path.
  • ConnectNamedPipe error fixed.
  • Minor improvements of reliability and performance.

New in Proxifier 3.21 (Nov 23, 2012)

  • Full support for Windows 8 desktop applications.
  • Windows 8 Metro (Windows Store) applications now work correctly when Proxifier Standard Edition is installed and running but they still completely bypass it.
  • Correct processing of IP4-mapped IPv6 addresses. Some applications like Java use such addresses even in IPv4 network environment.
  • SOCKS4 User ID has not been saved properly in profile in some scenarios.
  • Miscellaneous small improvements and adjustments.

New in Proxifier 3.15 (Apr 5, 2012)

  • Improved configuration management and other enhancements.

New in Proxifier 3.0 (May 23, 2011)

  • Improved UI and New Visual Style:
  • The new version features a significantly improved user interface. The connection list provides much more detailed information about the connections including: selected proxy server, matched rule, connection status with color indication, x64 and IPv6 mark, user name and process ID. All additional information is displayed only when needed so UI remains clean and easy to read.
  • Brand New Concept for Proxy Settings and Rules:
  • The core Proxifier configuration has been significantly redesigned and improved. Now you can specify independent multiple proxy servers in (Profile->Proxy Settings...). It is also possible to create multiple proxy chains and manipulate them via the new UI.
  • The new version allows you to assign different proxies/chains for different rules (Profile->Proxification Rules...). Thus each rule has an individual action that tells Proxifier to process the connections through a proxy or chain, to block the connection or to open it directly.
  • Profiles:
  • Management and organization of Proxifier configuration files (*.prx) has been improved and the function has been renamed to Profiles. The key features of the new approach are..
  • Fast switching between profiles.
  • Password encryption (Profile->Advanced->Password Encryption).
  • XML format of profile files (*.ppx).
  • Support for New Technologies:
  • Proxifier v3 fully supports IPv6 protocol and x64 applications and systems. Everything works out of the box. No additional configuration is required.
  • Transparent NTLM authentication with current user credentials is supported.
  • All character processing is now based on Unicode. Proxifier works well with any international strings and fonts.
  • The new version is fully compatible with the latest versions of Windows operating system and benefits from the features available on Windows Vista, Windows 7 and Windows Server 2008.
  • We also did our best to ensure maximum backward compatibility. It is still possible to run Proxifier on Windows 2000.
  • Services and Other Sessions Proxification:
  • The Proxifier network module has been rewritten to support Windows Services and applications being run by other users on the computer (Profile->Advanced->Services and Other Users...).
  • DNS over Proxy Improvements:
  • Now you can specify the hostnames that should be resolved with local DNS when Proxifier is configured to process hostnames through a proxy. This feature is useful when you need to work with LAN and Internet connections at the same time.
  • Other:
  • Version 3 features a number of other improvements. Overall the user experience has been significantly improved. We did our best to ensure maximum compatibility with third-party software, especially firewall and antivirus packages. The new version is much less likely to cause software conflicts.

New in Proxifier 2.91 (Feb 25, 2010)

  • Improved compatibility with third-party firewall and antivirus programs
  • The new version of Proxifier is less likely to conflict with third-party firewall and antivirus programs. For instance, the new version works correctly with the latest version of Kaspersky Internet Security.

New in Proxifier 2.9 (Sep 10, 2009)

  • Support of extended network functions
  • Proxifier now processes some advanced network API functions that may be used by modern network applications. For example, Proxifier now can work with VmWare vSphere client.
  • Improved "DNS through Proxy" performance
  • On some Windows Vista and Windows 7 machines "DNS through Proxy" feature (when enabled) was able to cause high CPU utilization.
  • The new version of Proxifier DNS module fixes this problem and improves performance of DNS names processing.
  • Windows 7 support
  • This version of Proxifier was tested on Windows 7. Now the Microsoft's new operating system is officially supported by Proxifier (Standard and Portable editions).

New in Proxifier 2.8 (Mar 5, 2009)

  • "Proxifier" exe-file context menu may stay after uninstallation of Proxifier. (Standard Edition)
  • The correct processing of the Proxifier settings files (.prx) when opened by a double-click from Explorer. (Standard Edition)
  • Minor code tweaks and adjustments.

New in Proxifier 2.6 (Mar 24, 2007)

  • Windows Vista Support - You can now use Proxifier with Microsoft's new Windows Vista operating system.
  • Improved "DNS through proxy" feature - This feature was noticeably improved and extended in the new version. Now Proxifier can test your DNS settings and choose the optimal mode automatically;
  • New option was added: "Resolve Locally then Remotely"; Proxification Rules work more smoothly in "DNS through proxy" mode.
  • HTTP Traffic Processing - Now both editions of Proxifier can "intercept" HTTP traffic and redirect it through any generic HTTP proxy server. Thus the feature can be used only for the applications that use HTTP protocol (e.g. web browsers). The options are available at:
  • Options->Advanced->HTTP_Traffic. Please note: this feature is intended for advanced users only

New in Proxifier 2.5 (Jan 2, 2007)

  • Built-in Proxy Checker - Proxy Checker will help you to test your proxy server settings, provide you with a detailed report and help to diagnose the problem.
  • Proxy Server address as a hostname - Now you can specify a hostname of the proxy server in the address field.
  • Statistics in KB, MB and GB
  • Statistics reset - Now you can reset Proxifier statistics from the context menu of the Statistics view.
  • Other improvements and bug fixes