I am having problems with the XML Enterprise Edition, each time I run the application, I get the following error "Unable to load plugin xquery.dll (error 127)". Can anyone help with this please?
That error can happen only if for some reason the xquery.dll module is out-of-synch with the Stylus Studio build you are running; which shouldn't happen if you have installed Enterprise Edition. I can only think about a bad installation.
Can you try installing Enterprise Edition again, making sure that you have no struzzo.exe processes active that would keep DLLs locked.