A. I recently had this problem on a Server 2008 R2 Remote Desktop server. The problem is a file, tsportalwebpart(1).dll, which is found in the folder C:\Windows\Web\RDWeb\Pages\Bin. Delete this file and the access to https://<tsserver>/RDWeb should work without the error.Related Reading:
- Enabling Remote Desktop Connections to Server Core
- Q. What version of the Remote Desktop Connection client do I need to use the new features in Windows Server 2008?
- Q. How can I configure my Remote Desktop client to use a TS Gateway?
- Is there an updated Remote Desktop Connection client for Windows Server 2003 and Windows XP that allows access to new features when connecting to Windows Server 2008 and Windows Vista systems?
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