"More..." button in Remote Desktop Connection (mstsc.exe) doesn't work
Article ID: CTX272255
Updated On:
Description
"More..." button in Remote Desktop Connection (mstsc.exe) doesn't work in Windows 10 multi session VDA. The list of "Local devices and resources" dialog should appear, but didn't.
Environment
Caution! Using Registry Editor incorrectly can cause serious problems that might require you to reinstall your operating system. Citrix cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk. Be sure to back up the registry before you edit it.
Resolution
Method 1:
Disable Citrix API hooks for Remote Desktop Connections (mstsc.exe).
Set the following registry in the VDA.
Key: HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\CtxHook\AppInit_Dlls\CtxMFPlugin
Value Name: Flag
Type: REG_DWORD
Value: 0x80000200
Create the following registry key in the VDA.
Key: HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\CtxHook\AppInit_Dlls\CtxMFPlugin\mstsc.exe
Method 2:
Disable the Citrix API hooks for mstsc.exe by creating the below registry keyKey: HKLM\SYSTEM\CurrentControlSet\services\CtxUvi
Value Name: UviProcessExcludes
Type: REG_SZ
Value: mstsc.exe
Value Name: UviProcessExcludes
Type: REG_SZ
Value: mstsc.exe
Problem Cause
The virtual WebCam device "Citrix HDX Web Camera" affected the behavior of listing the device local resources in mstsc.exe and caused the issue.Additional Information
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