I see there is a lot of discussion about the 10 concurrent threads in publisher. As many people have stated, it's a windows problem, not necesarilly a QV Publisher problem (except that Publisher uses something of windows which has a limit)
You can adjust this setting in Windows, and I'm told that Support will still support you if you've adjusted it.
Here's the instructions, use at your own risk.
This is the information on how to extend the Microsoft limitation of 10 CPU threads (meaning 10 concurrent tasks) for Publisher. Remember, this is a Windows setting, not a QlikView setting, so please use at your own discretion.
ComException error 80080005 Solution
Change the registry setting:
SharedSection=1024,3072,512 Windows=On SubSystemType=Windows
(Default is 1024,3072,512 in 32bit or 1024,3072,768 in x64)
Read more on http://blogs.msdn.com/ntdebugging/archive/2007/07/05/desktop-heap-part-2.aspx
Change the GDI and User handle max count in the registry to SharedSection=1024,20480,2048
SharedSection=1024,20480,2048 Windows=On SubSystemType=Windows
Read more about Desktop Heap on: