In my Repository largefile extension is active:
minsize = 4
patterns = re:.*.(doc|docx|xls|xlsx|pdf)$
usercache = C:\Mercurial\largefiles
If i commit changes with files, which should be treated as large files, i get asked if i should add the affected files as normal or large files.
Independend of my choice, Tortoise doesn´t show file histories for such files.