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Software components for data protection, secure storage and transfer

Create filesystems on Windows - now in user-mode

Callback File System is a library (SDK, software development kit) for presenting various data as files and directories of a local virtual disk. Regardless of where the actual data are kept: in files, in database records, memory, or elsewhere - they will be treated as if they were parts of a single file system.

Callback File System consists of pre-created kernel-mode drivers and a user-mode API available for .NET, C++ and VCL (Delphi and C++Builder).

What Callback File System offers

Callback File System provides a ready-to-use file system driver which routes request going to the filesystem to your user-mode code. Your user-mode code receives the request and processes it by accessing or modifying the actual data that resides anywhere you need. Also you get a user-mode API (libraries) for C++, .NET, Java and VCL (Delphi, C++Builder). This API is used to control the driver and to handle requests originated by the driver.

Source code

Callback File System license opens access to the source code of user-mode APIs. Also you can purchase a license that includes source code of kernel-mode drivers and helper DLLs. Extra source code allows you (both legally and technically) to build custom versions of the driver (eg. with customized version information, so-called "branded" drivers).


For more details about Callback File System, refer to Callback File System description, or download your own copy to try Callback File System for free. Ready to pull the trigger? Refer to the Prices and Ordering page for complete licensing information.


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As of July 15, 2016 EldoS Corporation will operate as a division of /n software inc. For more information, please read the announcement.

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