ITHit 

Contains RPC protocol, used by the IT Hit User File System Engine in case of out-of-proc or surrogate COM thumbnails handler, context menu, custom state (custom columns) handler, etc.

Windows shell extensions implementation, such as Windows Explorer thumbnails provider, Windows Explorer context menu, cloud files custom state handler, etc, used by the IT Hit User File System Engine.

Contains RPC protocol client, out-of-proc or surrogate COM thumbnails handler, context menu, custom state (custom columns) handler, etc.

IT Hit User File System Engine for macOS provides a high-level API for creating a user file system in .NET/Xamarin with synchronization support, on-demand loading, offline files, and Finder integration. 100% safe, managed code. No unsafe memory management operations. No blue screens. IT Hit User... More information

Windows sparse package classes to provide application identity for shell extensions.