I installed and it does not show up. I tested it with TextEdit on Tiger 10.45 on a G4 PowerMac Dual 500. I have installed Wordservice.service in ~Library/Services/
My Services menu is not in the top menu bar as shown on the screenshot. My services menu is under the application menu.
The proposed shortcut to enter the date (the reason why I got WordService) does not work.
I did log out before testing.
Any idea? Is the product too old?