I tried to install the File Explorer previewer, and I get an error message. I ran the SetupHandlerDLLs.exe with administrator rights. Could cause the error because my installation is on drive E? After the error I installed on drive C and the installation was successful and previewing works now.
Unfortunately I did not try it after the first (drive E) installation, so I do not tell if it worked in spite of the error message or the second installation on drive C fixed the things.