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Logical Drive FilesRTFiles-32 allows a logical drive to be opened as a file. Both read-only and read/write access are supported. The file name of a drive file is \\.\X:, where X must be replaced with the desired drive letter. A drive file spans the complete logical drive, starting at the first sector of the drive (the boot sector). Access to drive files must be sector size aligned. This means you can only read or write data in complete sector size multiples. The same restriction applies to seek operations. Logical drive files bypass RTFiles-32's buffers. Read and write requests are passed directly to the device drivers. However, RTFiles-32 will ensure that the buffer contents remains consistent with the drive's contents when a device or drive file accesses data also present in the buffer cache. Logical drive file I/O is possible even on unformatted drives as long as low-level sector I/O is possible. Logical drive files can be used to high-level format a volume.
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