When you search for the TRIGGERcmd agent, like this:
9e834b8c-8aa3-4d2b-af23-4653e8a349f8-image.png
Do you see the option to click the App?
da7608b1-292e-4516-986f-0f7220be2a7d-image.png
And if you click it, does nothing happen?
Are you sure you don't already have the TRIGGERcmd tray icon? I right-clicked mine in this screenshot:
12040e6d-b952-4559-ae5a-68307f66c01b-image.png
You might need to delete or rename your c:\Users\(username)\.TRIGGERcmdData folder to reset it.