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UseOldShadowing

Workspace Control uses MSTSC.exe /shadow when setting up a Remote Control session that originates from a machine running Microsoft Windows Server 2012 R2.

Create the following string value to configure Workspace Control to use shadow.exe when setting up a Remote Control session. If shadow.exe is not available, Workspace Control uses MSTSC.exe /shadow instead.

Key	HKEY_LOCAL_MACHINE\SOFTWARE\RES\Workspace Manager (32-bit) HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\RES\Workspace Manager (64-bit)
Value	UseOldShadowing
Type	REG_SZ
Data	Yes

Remote Desktop Shadowing was reinstated in Windows Server 2012 R2. For more details on where to find the Shadow UI and how to use it, see the following article onMicrosoft Tech Community.