What worked for me was to visit this page.
dll-download-system.com
exact link: www.dll-download-system.com/home/w-dlls-not-system-/wlidcli.dll/details.html
No need to download or install setup program. just find the correct download button. (Its the most boring one in only grey) all others are advertisments.
Make a search for your .dll file, download, and put in your \windows\system folder.
Always perform virus-scan on files manually after download.