Whilst I'm loath to back any anti-european sentiment, you've got that quite badly wrong mate.
The transfer window was enforced in 2002 in direct response to EC discussions.
Ok, the EU has only really been called that since the Lisbon treaty in 09.
But the EU as the entity all these little Englanders dislike is the same thing since the EC was created in the Maastricht treaty in 93 (or the EEC since Rome in 58).
It is definitely just semantics between them all from the UK position really.