Article ID: 6720, created on Sep 25, 2009, last review on May 3, 2014

  • Applies to:
  • Virtuozzo containers for Windows 4.5
  • Virtuozzo containers for Windows 4.0
  • Virtuozzo for Windows 3.5.1 SP1


The container backup process runs very slow. Especially the state "Backing up additional data" takes much time.


An old version of zip.exe tool is shipped with Parallels Containers.


To work the issue around it is necessary to replace zip.exe file by later version (2.32 or later).

Parallels Containers 4.5:

The file is located in "C:\Program Files\Parallels\Containers\bin" folder on x86 server and "C:\Program Files (x86)\Parallels\Containers\bin" on x64.

Parallels Containers 3.5.1 and 4.0:

The file is located in "C:\Program Files\SWsoft\Virtuozzo\bin" folder on x86 server and "C:\Program Files (x86)\SWsoft\Virtuozzo\bin" on x64.

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