number of items however the if statement used nIHeight (just the
height of 1 item) and not nHeight (the height all the items).

comctl32: toolbar: Copy bitmaps with CopyImage so that it works also for DIBs (based on a patch by Oleg Krylov).

as it is mandatory and doesn't indicate that the arguments will be
passed in as named ones.

if it is not an HRESULT value, instead of getting it from a [retval]
attribute.

oleaut32: If an error info object was created when the invoked method failed then fill in exception info from the error info object.

so that the right external reference count is released when the proxy is destroyed.
Protect all changes to refs in the ifproxy using interlocked functions 
and update the thread-safety documentation.

Otherwise we would leak a reference for both of these if the ifstub was already created.
Fix the FIXME in the code by releasing the stub manager if necessary.

and fixup the places that depended on the old behaviour.

to fixup the IID used to connect to the server and fix somewhat common
"err:rpc:RPCRT4_OpenBinding" messages.

This makes sure the property is set to the right value even when order in listbox is changed.

Remove struct msi_listbox_item as it only contains 1 element now.