System.IO.MemoryMappedFiles

This assembly provides support for creating files into the Random-Access Memory of the application's machine. The primary types in this assembly are MemoryMappedFile used to create the in-memory file, and MemoryMappedViewAccessor and MemoryMappedViewStream to access the contents of the file.

Documentation can be found at https://learn.microsoft.com/dotnet/api/system.io.memorymappedfiles.

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Deployment

The System.IO.MemoryMappedFiles assembly is part of the shared framework, and ships with every new release of .NET.