Invoke Mediainfo with Tools

Has someone successfully configured Mp3Tags tools-menue to invoke Mediainfo (GUI)? (Mediainfo)
I am asking because I wasn't successful and would like to be able to invoke it out of MP3Tag.:disappointed:

Use "%_path%" as Parameter:

Shame on me!
I forgot the quotes.:blush:
I have about 10 tool-entries with "%_path%" and this time I forgot them.