Crate ironrdp_dvc_com_plugin 

DVC COM client plugin loader for IronRDP (Windows-only).

This crate enables loading native Windows DVC (Dynamic Virtual Channel) client plugin DLLs such as webauthn.dll into IronRDP’s DVC channel infrastructure.

The plugin DLL is loaded via LoadLibraryW, its VirtualChannelGetInstance export is called to obtain IWTSPlugin COM objects, and a Rust implementation of IWTSVirtualChannelManager bridges data bidirectionally between the plugin’s COM callbacks and IronRDP’s DVC system.

Architecture

A dedicated COM worker thread owns all COM objects (which are !Send). The [DvcComChannel] structs (which implement DvcProcessor + Send) are registered as DVC channels in IronRDP’s DrdynvcClient and communicate with the COM thread via std::sync::mpsc channels.

Outbound data from the plugin (IWTSVirtualChannel::Write) is injected into the active session loop via the on_write_dvc callback, following the same pattern as ironrdp-dvc-pipe-proxy.

References

• Writing a Client DVC Component
• tsvirtualchannels.h