Responsive issues (VST plugin)

Hello, for some reason my copy of Cubase seems to be rather unresponsive when I open up a certain project file. I’ve concluded that it has to do with a VST plugin that I’ve downloaded, but am not sure how to combat that if I can’t open the project to disable it. I’m running Cubase LE 5. Any advice pertaining to the matter? Thank you!

Remove it from the plugon folder before opening cubase…

Wow, duh. I can’t believe that didn’t cross my mind, haha. Thanks a bunch. Any ideas on why that might be happening? It was just a free plugin from the internet, so I’m not too worried about it, just curious. Thanks!