Logic Pro 7 & earlier Logic 5.5 for PC

Can anyone remind me how to open the plug-in validation window in Logic 5.5 for PC. A friend has asked me and its been a few years since I used that version. Thank you.
Plug-in validation window V5.5 for PC

Great, Chug, you jogged my memory and you're absolutely right thank you very much for a quick reply.