Will SecureZIP open ZIP files compressed using the PPMd compression algorithm?
SecureZIP V12.4 includes support for creating and opening ZIP files using the PPMd compression algorithm. The current version of the PPMd algorithm does not support 64-bit versions of Windows, but you can run a 32-bit version of Windows Explorer to extract files compressed with this algorithm. To do this: 1. Go to Start > Run 2. Type C:\windows\syswow64\explorer.exe /separate in the box 3. Click OK. 4. Browse to the archive you want to extract. 5. Right-click on the archive, and choose SecureZIP > Extract… The file should extract normally.