Wednesday, February 13, 2013

KB2798286: RemoteApp disconnects from a client running Windows 7 or Windows Server 2008 R2

A new KB article (KB2798286) was released today related to Remote Apps being disconnected with a protocol error when the Remote App supports Remote Applications Integrated Locally (RAIL). It seems like a similar update as KB2696020 Only this time the fix is also applicable for Windows 7.

“…Consider the following scenario:

  • You install the Remote Desktop Session Host role service on a computer that is running Windows Server 2008 R2.
  • You publish a RemoteApp application that supports the Remote Applications Integrated Locally (RAIL) feature on the computer.
  • You use the Remote Desktop Web Access (RD Web Access) service on a client computer that is running Windows 7 or Windows Server 2008 R2 to access the RemoteApp application.
  • You open the RemoteApp application and perform several operations.
In this scenario, the Remote Desktop session disconnects. Additionally, you receive an error message that resembles the following:

Because of a protocol error, this session will be disconnected. Please try connecting to the remote computer again..”

Source and download:


  1. Have you seen an issue where the RDP Shell crashes a session in Windows 2012 Server and doesn't allow the user back in, the process then sits there each up 10% of the CPU...server needs to be powered off to boot the user out...other connections aren't affected.

  2. Likewise we are encountering a number of RDP Shell crashes on Server 2012 that prevent the user logging back in. RDPShell consumes an entire vCPU and cannot be terminated by an admin. The server has to be powered off to clear the users session.