When installing TMCM, the process stops and you get a message saying that the pfdll.dll file cannot be loaded.
This issue can happen on both TMCM 6.0 and TMCM 7.0.
The issue is linked to the registry key HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\CWDIllegalInDllSearch with a value 0xFFFFFFFF.
To allow the installation of TMCM, temporarily remove the registry value mentioned.