Support Matrix

RoyalApps.Community.Rdp.WinForms uses one shared RdpClientConfiguration model, but not every option is supported by both hosting modes.

Use this page as the contract for which features are valid in Embedded and External mode.

Feature Matrix

Feature / setting	Embedded	External	Notes
Full desktop session	Yes	Yes	The baseline session model in both modes.
Program alternate shell	Yes	Yes	Desktop-session only. Cannot be combined with RemoteApp.
RemoteApp	No	Yes	Embedded mode rejects it during validation.
Display.UseMultimon	Yes	Yes	Embedded uses the ActiveX client property; external writes use multimon.
External.SelectedMonitors	No	Yes	External-only monitor targeting via selectedmonitors.
Connection.EnableRdsAadAuth	Yes	Yes	External writes enablerdsaadauth.
Security.AuthenticationServiceClass	Yes	No	Embedded-only ActiveX setting. It is not written to generated external .rdp files.
Security.DisableCredentialsDelegation	Yes	Limited	External support requires External.UseMsRdpExHooks.
Security.RedirectedAuthentication	Yes	Limited	External support requires External.UseMsRdpExHooks.
Security.RestrictedLogon	Yes	Limited	External support requires External.UseMsRdpExHooks.
Security.RemoteCredentialGuard	Yes	Limited	External support is only effective when the low-level flags are written through MsRdpEx hooks.
Security.RestrictedAdminMode	Yes	Limited	External support is only effective when the low-level flags are written through MsRdpEx hooks.
Zoom / smart sizing / direct IRdpClient access	Yes	No	External mode treats these as no-ops because the session runs in another process.
Temp .rdp file, launcher path, credential staging, process lifetime	No	Yes	These live under RdpConfiguration.External.

Validation Rules

The library validates unsupported combinations before connect instead of silently ignoring them.

• RemoteApp is external-only.
• Program and RemoteApp cannot be combined in one connection.
• External.SelectedMonitors is external-only.