http://bugs.winehq.org/show_bug.cgi?id=14178
--- Comment #8 from Reece Dunn msclrhd@gmail.com 2010-02-10 08:51:19 --- I have pasted the world of the worlds text into notepad 70 times and it has accepted the data without issue -- it does consume 57M memory with 106M peak memory usage, though; but most of that will be the text data.
I suspect that the limit is memory bound.