Every now and then I need to get or compare the version of a file. Although this is a rather basic task, you’ll need to know the exact location of the file.
If you have a standardized environment, this wouldn’t be much of a problem… the file is at the same location on each server, right? 
But what if you don’t have that luxury? What if you only know the drive where the file is located?
You can use a simple CIM/WMI class for this:
Get-CimInstance -Query "SELECT * FROM CIM_DataFile WHERE Drive='C:' AND FileName='winword' AND Extension='exe'"
And if you don’t know the drive, simply don’t filter on that and the command will search through the entire target… logically this will take a lot more time
Get-CimInstance -Query "SELECT * FROM CIM_DataFile WHERE FileName='winword' AND Extension='exe'"