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Developer(s) Shirouzu Hiroaki[1]
Initial release September 28, 2004; 11 years ago (2004-09-28)
Stable release 3.11 / 6 December 2015; 7 months ago (2015-12-06)[2]
Operating system Windows XP/Vista/7/8/8.1/10; Windows Server 2003/2008/2012
Platform Microsoft Windows
Available in English/Japanese

FastCopy is free open source (GPLv3 license) computer software, a portable file and directory copier that runs under Microsoft Windows.

There are 32- and 64-bit versions, which run under versions of Windows from XP to 10, and Windows Server 2003, 2008, and 2010. The files comprising 32-bit version 3.05 are about 900kB.[3] It claims to offer fast transfer of files between hard drives and copying of files within the same drive.[citation needed] It can run as a free-standing application, or be integrated into the Windows shell.

In a test conducted in 2008 by lifehacker, Fastcopy was several times faster than its rival Teracopy,[4] a program with similar functionality. However, both programs have been updated since then. A more extensive comparison was performed between TeraCopy v2.07beta, KillCopy v2.85, FastCopy v1.99r4, SuperCopier v2.2bet and published on a forum in 2009.[5]

In Microsoft Windows up to and including at least Windows 7, the Win32 API and any program that uses it (like Microsoft's Windows Explorer) has a limitation of maximum 260 UTF-16 characters (MAX_PATH in windef.h) in file and directory paths when performing file copy and rename (including move or deletion) operations, but not in file access (e.g. execution or reading) operations; but this limitation becomes 32,768 when a program uses its own code over the NT kernel for file operations or unlimited if a program accesses the NTFS file system directly in low-level. FastCopy does not use Microsoft's API and places its own calls to the NT kernel, therefore enabling a user or system administrator to perform file copy, move or delete operations even if the file or directory paths involved exceed 260 characters.


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