Thunking Spooler APIS from 32 to 64 process has stopped working

Hi
I have been reading alot of forums with lots of people having the same
problem as we are where when trying to print to a network printer with vista
64 bit edition the following error occurs "Thunking Spooler APIS from 32 to
64 process has stopped working". The only solution that seems to be given
everywhere is from the same person Alan Morris from the Windows Printing Team
where he asks if running Vista Sp1 and also points to the hotfix kb941962
which doesn't seem to solve anyones problems as that is normally where the
threads go dead after they reply that they have Sp1...
We have Sp1 and have tried the hotfix. We've also tried what everyone else
has tried which is reinstalling the network printers and drivers.
Details of error
Problem Event Name: APPCRASH
Application Name: splwow64.exe
Application Version: 6.0.6000.16386
Application Timestamp: 4549c865
Fault Module Name: x2rpclAP.dll
Fault Module Version: 5043.900.0.0
Fault Module Timestamp: 46e9498b

thanks for any help you can provide

The same problem here.
I try to print to a shared printer on a XP x86 system.
Printing from Notepad (x64) works okay, but from a pdf reader I got
this error message.

Faulting application splwow64.exe, version 6.0.6001.18000, time stamp
0x4791a2b0, faulting module ntdll.dll, version 6.0.6001.18000, time
stamp 0x4791adec, exception code 0xc0000374, fault offset
0x00000000000a6e97, process id 0x113c, application start time
0x01c9ae9da36e5db6.


--
janjoker

I ended up fixing my problem by just fussing with the printer settings
in Word a bit. Not sure how/why this worked, but it did. Worth a shot.

Based on comments posted here, could it be possible that only some
features of the x86 printer will work with x64 systems but when tweaking
certain settings in the print preferences causes a failure which then
brings up the 'thunking' message when the x64 system cannot use the new
settings?

If you understand what I mean, is it then possible to install
additional 64 bit drivers to the shared printer and help to resolve this
problem?

Has anyone tried installing additional drivers to a network printer?