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YAHB is a lightweight, deduplicating file-copy utility published by asdfjkl and currently offered in version 1.1.0.0, the third public release of the program. Designed expressly for backup scenarios, the application identifies identical files within a source tree and, instead of creating redundant physical copies, establishes NTFS hard-links that point to a single on-disk instance. This file-level deduplication strategy can dramatically reduce storage consumption and transfer time when repeatedly archiving large collections—such as successive snapshots of photo libraries, virtual-machine images, or software projects—because only new or changed files are actually duplicated. Because hard-links are a native NTFS feature, the resulting backup remains fully browsable in Windows Explorer and compatible with standard utilities, yet occupies a fraction of the space that a conventional copy would require. The tool is typically invoked from the command line or a batch script, making it easy to integrate into scheduled tasks or larger backup workflows that demand minimal overhead. Users who maintain several versions of the same data set on a single NTFS volume will find YAHB especially useful, as it eliminates silent redundancy without sacrificing the convenience of an ordinary folder hierarchy. The program is available for free on get.nero.com, with downloads provided via trusted Windows package sources such as winget, always delivering the latest version and supporting batch installation of multiple applications.
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