Not sure if cmdlkey is legitimate. It does not appear in your OP file list.
On my Win 10 system:
C:\WINDOWS\system32>where /R c:\ cmdl*
c:\Windows\System32\cmdl32.exe
c:\Windows\System32\en-US\cmdl32.exe.mui
c:\Windows\System32\WindowsPowerShell\v1.0\Modules\NetworkSwitchManager\CmdletHelpers.psm1
c:\Windows\SysWOW64\cmdl32.exe
c:\Windows\SysWOW64\en-US\cmdl32.exe.mui
c:\Windows\WinSxS\amd64_microsoft-networksw..anagement-component_31bf3856ad364e35_10.0.14393.0_none_78d1b18d6d81c47f\CmdletHelpers.psm1
c:\Windows\WinSxS\amd64_microsoft-windows-r..onmanager.resources_31bf3856ad364e35_10.0.14393.0_en-us_5b914fea19d8d333\cmdl32.exe.mui
c:\Windows\WinSxS\amd64_microsoft-windows-rasconnectionmanager_31bf3856ad364e35_10.0.14393.0_none_8c94aaec77383156\cmdl32.exe
c:\Windows\WinSxS\wow64_microsoft-windows-r..onmanager.resources_31bf3856ad364e35_10.0.14393.0_en-us_65e5fa3c4e39952e\cmdl32.exe.mui
c:\Windows\WinSxS\wow64_microsoft-windows-rasconnectionmanager_31bf3856ad364e35_10.0.14393.0_none_96e9553eab98f351\cmdl32.exe
C:\WINDOWS\system32>where /R c:\ cmd1key*
INFO: Could not find files for the given pattern(s).
C:\WINDOWS\system32>where /R c:\ cmdLkey*
INFO: Could not find files for the given pattern(s).
cmdl32.exe is a standard Windows file.