AVD clarified scanner redirection

Author: dknappettmsft

articles/virtual-desktop/compare-remote-desktop-clients.md

@@ -276,7 +276,7 @@ The following table shows which local devices you can redirect to a remote sessi
 | Local drive/storage | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sup>&#160;&#160;&#8201;</sup><sub>:::image type="icon" source="media/yes.svg" border="false":::</sub>&sup2; |
 | Microphones | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> |
 | Printers | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sup>&#160;&#160;&#8201;</sup><sub>:::image type="icon" source="media/yes.svg" border="false":::</sub>&sup3; | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sup>&#160;&#160;&#8201;</sup><sub>:::image type="icon" source="media/yes.svg" border="false":::</sub>&#8308; |
-| Scanners | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> |
+| Scanners&#8309; | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> |
 | Smart cards | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> |
 | Speakers | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> |
 
@@ -289,7 +289,7 @@ The following table shows which local devices you can redirect to a remote sessi
 | Local drive/storage | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sup>&#160;&#160;&#8201;</sup><sub>:::image type="icon" source="media/yes.svg" border="false":::</sub>&sup2; |
 | Microphones | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> |
 | Printers | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sup>&#160;&#160;&#8201;</sup><sub>:::image type="icon" source="media/yes.svg" border="false":::</sub>&sup3; | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sup>&#160;&#160;&#8201;</sup><sub>:::image type="icon" source="media/yes.svg" border="false":::</sub>&#8308; |
-| Scanners | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> |
+| Scanners&#8309; | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> |
 | Smart cards | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> |
 | Speakers | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> |
 
@@ -302,7 +302,7 @@ The following table shows which local devices you can redirect to a remote sessi
 | Local drive/storage | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sup>&#160;&#160;&#8201;</sup><sub>:::image type="icon" source="media/yes.svg" border="false":::</sub>&sup2; |
 | Microphones | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> |
 | Printers | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sup>&#160;&#160;&#8201;</sup><sub>:::image type="icon" source="media/yes.svg" border="false":::</sub>&sup3; | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sup>&#160;&#160;&#8201;</sup><sub>:::image type="icon" source="media/yes.svg" border="false":::</sub>&#8308; |
-| Scanners | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> |
+| Scanners&#8309; | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> |
 | Smart cards | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/no.svg" border="false":::</sub> |
 | Speakers | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> | <sub>:::image type="icon" source="media/yes.svg" border="false":::</sub> |
 
@@ -312,6 +312,7 @@ The following table shows which local devices you can redirect to a remote sessi
 1. Limited to uploading and downloading files through a web browser.
 1. The Remote Desktop app on macOS supports the *Publisher Imagesetter* printer driver by default (*Common UNIX Printing System* (CUPS) only). Native printer drivers aren't supported.
 1. PDF printing only.
+1. High-level redirection of TWAIN scanners isn't supported. You can only redirect USB scanners using opaque low-level redirection. For more information, see [Peripheral and resource redirection over the Remote Desktop Protocol](redirection-remote-desktop-protocol.md).
 
 The following table provides a description for each type of device you can redirect: