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Remote Differential Compression

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Remote Differential Compression (RDC) is a client-server synchronization protocol that allows the contents of two files to be synchronized by communicating only the differences between them. It was introduced with Windows Server 2003 R2 and is included with later Windows client and server operating systems.

Unlike Binary Delta Compression (BDC), which is designed to operate only on known versions of a single file, RDC does not make assumptions about file similarity or versioning. The differences between files are computed on the fly, therefore RDC is suitable for efficient synchronization of files that have been updated independently, network bandwidth is small or in scenarios where the files are large but the differences between them are small.

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