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I'm looking for a sync/backup client for Windows with:

  1. Open source license (BSD/GPL)
  2. rsync deltas to a remote rsync server
  3. VSS support

Command line interface is preferred to a GUI.

The less of everything else, the better.

Any ideas?

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Tried Unison? – N.N. Apr 19 '12 at 21:27
Is "VSS" Visual SourceSafe or Shadow Copy? – Eroen Apr 19 '12 at 21:57
Hey! How about it now? Could it help me with this : – Armel Larcier Jun 23 '15 at 13:14
up vote 2 down vote accepted

I believe that Duplicati meets all of your specifications - it supports VSS, uses deltas and has a commandline client in addition to the GUI.

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Duplicati is great for this as long as you don't need to run the backup as a service. This is promised for version 2. – Paul Sep 14 '12 at 7:54
Duplicati doesn't use rsync. It uses rdiff.!topic/duplicati/abqyUO3w9qU – Aaron C. de Bruyn Jul 25 '13 at 16:42
Is this an option for what I need : – Armel Larcier Jun 23 '15 at 13:14

I have used BackupPC before and was very pleased. My user base loved that they could restore their own files if they needed to recover data.

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Problem with BackupPC is that using SMB to get the files does not allow snapshotting (VSS) of the filesystem and therefore does not allow backup of open files. – Paul Sep 14 '12 at 7:55

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