MMC Windows Cannot Open The File <filename>.msc.

Full Error:

"MMC cannot open the file <filename>.MSC
This may be because the file does not exist, is not an MMC console, or was
created by a later version of MMC. This may also be because you do not have
sufficient access rights to the file."

1) Verify the files are present and you have access to them
2) Register the following DLLs

Regsvr32 Msxml.dll

Regsvr32 Msxml2.dll

Regsvr32 Msxml3.dll