In print preview you can zoom in by left clicking on one of the pages.  The
zoom cursor is displayed whenever the mouse is over the page to indicate to
the user that they can zoom in.  When fully zoomed in it will zoom out when
this is done again.  When clicking on the second page, it will zoom into
that page.

The leaked send right kept the port alive for threads that are gone.  For
processes which create a lot of threads, this can cause performance problems.

Found by Valgrind.

krnl386.exe: Add an explicit name check to allow importing user.exe and gdi.exe even if not loaded already.