Sandboxie Plus 1.0.9 / Classic 5.55.9

Sandboxie Plus

Run programs in a sandbox to prevent malware from making permanent changes to your PC.

Sandboxie allows you to run your browser, or any other program, so that all changes that result from the usage are kept in a sandbox environment, which can then be deleted later.

Sandboxie is a sandbox-based isolation software for 32- and 64-bit Windows NT-based operating systems. It is being developed by David Xanatos since it became open source, before that it was developed by Sophos (which acquired it from Invincea, which acquired it earlier from the original author Ronen Tzur). It creates a sandbox-like isolated operating environment in which applications can be run or installed without permanently modifying the local or mapped drive. An isolated virtual environment allows controlled testing of untrusted programs and web surfing.

Sandboxie is available in two flavors Plus and Classic. Both have the same core components, this means they have the same level of security and compatibility. What's different is the user interface the Plus build has a modern Qt based UI which supports all new features that have been added since the project went open source. The Classic build has the old no longer developed MFC based UI, hence it lacks support for modern features, these features can however still be used when manually configured in the Sandboxie.ini.

Sandboxie Plus 1.0.9 / Classic 5.55.9 changes:


  • SandMan now causes all boxed processes to update their path settings in real time when access options were modified
  • added new maintenance menu option "Uninstall All" to quickly remove all components when running in portable mode
  • added version number to the title bar of Sandboxie Classic
  • added option to return not to a snapshot but to an empty box state while keeping all snapshots
  • Sandboxie-Plus.ini can now be placed in C:\ProgramData\Sandboxie-Plus\ folder and takes precedence (for business use)
  • added support for AF_UNIX on Windows to resolve issues with OpenJDK17 and later #1009 #1520 #1521


  • reworked breakout mechanism to be service based and not allowing the parent process to access the broken out child process
  • enabled creation of directory junctions for sandboxed processes #1375
  • restored back AutoRecover=y on box creation #1554
  • improved snapshot support #1220
  • renamed "Disable Forced Programs" command to "Pause Forced Programs Rules" (Plus only)


  • fixed BreakoutProcess not working with EnableObjectFiltering=y
  • FIXED SECURITY ISSUE: when starting COMSRV unboxed, the returned process handle had full access
  • fixed issue with progress dialog #1562
  • fixed issue with handling directory junctions in Sandboxie #1396
  • fixed a handle leak in File_NtCloseImpl
  • fixed border issues on maximized windows introduced in the last build #1561
  • fixed a couple of index overruns (thanks 7eRoM) #1571
  • fixed issues with sysnative directory #1403
  • fixed issue with starting SandMan when running sandboxed from context menu #1579
  • fixed dark mode flash issue with main window creation #1231
  • fixed issues with snapshot error handling #350
  • fixed issues with the always on top option (Plus only)

Download: Sandboxie Plus 1.0.9 (64-bit) | Sandboxie Plus 1.0.9 (32-bit) ~16.0 MB (Open Source)
Download: Sandboxie 5.55.9 Classic (64-bit) | Sandboxie 5.55.9 Classic (32-bit) ~3.0 MB
View: Sandboxie Website | Sandboxie Plus Home Page | GitHub | Release Notes

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