How to Uninstall a Plugin in Safari for Windows?

Hi,
Im using Safari 4.0.3 on Windows XP and can view my installed plugins through Help>Installed Plug-ins, but how do I uninstall plug-ins?
I know that on the Mac they are stored in specific folders but I dont know how it works in Windows. How do I uninstall Safari plugins in Windows?

Thanks,
Dan1ell