Here you can get the latest test version. These are not official releases, but should be stable. Feel free to download and use.
Version 3.29.25
http://www.sandboxie.com/SandboxieInstall-329-25.exe
Changes from version 3.28:
* Fixed a problem with sandboxed installations incorrectly using DLLs located outside the sandbox, even if the installation deploys a newer DLL within the sandbox.
* Support for NetNanny 5. (3.29.05)
* File and folders (but probably not any other kind of object) can be dragged from a regular window and dropped into a sandboxed window. (3.29.07)
* Right-clicking "Properties" on file in a sandboxed Windows Vista Explorer should no longer create a copy for that file in the sandbox. (3.29.07)
* Eliminate some cases of a SBIE2306 message (3.29.07)
* Resolved problem with choppy audio on Windows Vista (3.29.10)
* New Resource Access Monitor in File Menu can help to identify resource exclusions (3.29.13)
* Fixed problem when user account contains non-English characters (3.29.14)
* Revised Internet Access restrictions/exclusions to include UDP (3.29.14)
* Fixed a small bug in how the sandboxed registry was handled (3.29.14)
* Added support for sandboxing storage devices (3.29.14)
* Forced Folders extended to identify documents being opened from a forced folder, and apply sandboxing to the program associated with the document. (3.29.16)
* Minor performance improvements for multi-processor systems (3.29.20)
* Prevent sandboxed programs from changing desktop wallpaper (3.29.23)
* Prevent Windows Passport accounts (as entered into Messnger or Hotmail, for example) from leaking outside the sandbox (3.29.23)
* .NET Framework 2.0 can now be installed into the sandbox (3.29.25)
* Improved support for remote shares on Windows Vista (3.29.25)
